Finished porting new abi encoder to contracts

21 files changed, 38 insertions, 9883 deletions

diff --git a/packages/abi-gen-templates/partials/callAsync.handlebars b/packages/abi-gen-templates/partials/callAsync.handlebars
index d4fb772c7..e978f577d 100644
--- a/packages/abi-gen-templates/partials/callAsync.handlebars
+++ b/packages/abi-gen-templates/partials/callAsync.handlebars
@@ -4,9 +4,7 @@ async callAsync(
     defaultBlock?: BlockParam,
 ): Promise<{{> return_type outputs=outputs}}> {
     const self = this as any as {{contractName}}Contract;
-    const functionSignature = '{{this.functionSignature}}';
-    const abiEncoder = self._lookupAbiEncoder(functionSignature);
-    const encodedData = abiEncoder.encode([{{> params inputs=inputs}}]);
+    const encodedData = self._strictEncodeArguments('{{this.functionSignature}}', [{{> params inputs=inputs}}]);
     const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
         {
             to: self.address,
@@ -17,6 +15,7 @@ async callAsync(
     );
     const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
     BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
+    const abiEncoder = self._lookupAbiEncoder('{{this.functionSignature}}');
     let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
     return resultArray{{#singleReturnValue}}[0]{{/singleReturnValue}};
 },
diff --git a/packages/abi-gen-templates/partials/tx.handlebars b/packages/abi-gen-templates/partials/tx.handlebars
index 102316b44..0f1027fae 100644
--- a/packages/abi-gen-templates/partials/tx.handlebars
+++ b/packages/abi-gen-templates/partials/tx.handlebars
@@ -9,8 +9,7 @@ public {{this.tsName}} = {
     {{/this.payable}}
     ): Promise<string> {
         const self = this as any as {{contractName}}Contract;
-        const abiEncoder = self._lookupAbiEncoder('{{this.functionSignature}}');
-        const encodedData = abiEncoder.encode([{{> params inputs=inputs}}], {optimize: false});
+        const encodedData = self._strictEncodeArguments('{{this.functionSignature}}', [{{> params inputs=inputs}}]);
         const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
             {
                 to: self.address,
@@ -31,8 +30,7 @@ public {{this.tsName}} = {
         txData: Partial<TxData> = {},
     ): Promise<number> {
         const self = this as any as {{contractName}}Contract;
-        const abiEncoder = self._lookupAbiEncoder('{{this.functionSignature}}');
-        const encodedData = abiEncoder.encode([{{> params inputs=inputs}}]);
+        const encodedData = self._strictEncodeArguments('{{this.functionSignature}}', [{{> params inputs=inputs}}]);
         const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
             {
                 to: self.address,
@@ -48,8 +46,7 @@ public {{this.tsName}} = {
     {{> typed_params inputs=inputs}}
     ): string {
         const self = this as any as {{contractName}}Contract;
-        const abiEncoder = self._lookupAbiEncoder('{{this.functionSignature}}');
-        const abiEncodedTransactionData = abiEncoder.encode([{{> params inputs=inputs}}]);
+        const abiEncodedTransactionData = self._strictEncodeArguments('{{this.functionSignature}}', [{{> params inputs=inputs}}]);
         return abiEncodedTransactionData;
     },
     {{> callAsync}}
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/asset_proxy_owner.ts b/packages/abi-gen-wrappers/src/generated-wrappers/asset_proxy_owner.ts
deleted file mode 100644
index 4257004fd..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/asset_proxy_owner.ts
+++ /dev/null
@@ -1,1473 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type AssetProxyOwnerEventArgs =
-    | AssetProxyOwnerAssetProxyRegistrationEventArgs
-    | AssetProxyOwnerConfirmationTimeSetEventArgs
-    | AssetProxyOwnerTimeLockChangeEventArgs
-    | AssetProxyOwnerConfirmationEventArgs
-    | AssetProxyOwnerRevocationEventArgs
-    | AssetProxyOwnerSubmissionEventArgs
-    | AssetProxyOwnerExecutionEventArgs
-    | AssetProxyOwnerExecutionFailureEventArgs
-    | AssetProxyOwnerDepositEventArgs
-    | AssetProxyOwnerOwnerAdditionEventArgs
-    | AssetProxyOwnerOwnerRemovalEventArgs
-    | AssetProxyOwnerRequirementChangeEventArgs;
-
-export enum AssetProxyOwnerEvents {
-    AssetProxyRegistration = 'AssetProxyRegistration',
-    ConfirmationTimeSet = 'ConfirmationTimeSet',
-    TimeLockChange = 'TimeLockChange',
-    Confirmation = 'Confirmation',
-    Revocation = 'Revocation',
-    Submission = 'Submission',
-    Execution = 'Execution',
-    ExecutionFailure = 'ExecutionFailure',
-    Deposit = 'Deposit',
-    OwnerAddition = 'OwnerAddition',
-    OwnerRemoval = 'OwnerRemoval',
-    RequirementChange = 'RequirementChange',
-}
-
-export interface AssetProxyOwnerAssetProxyRegistrationEventArgs extends DecodedLogArgs {
-    assetProxyContract: string;
-    isRegistered: boolean;
-}
-
-export interface AssetProxyOwnerConfirmationTimeSetEventArgs extends DecodedLogArgs {
-    transactionId: BigNumber;
-    confirmationTime: BigNumber;
-}
-
-export interface AssetProxyOwnerTimeLockChangeEventArgs extends DecodedLogArgs {
-    secondsTimeLocked: BigNumber;
-}
-
-export interface AssetProxyOwnerConfirmationEventArgs extends DecodedLogArgs {
-    sender: string;
-    transactionId: BigNumber;
-}
-
-export interface AssetProxyOwnerRevocationEventArgs extends DecodedLogArgs {
-    sender: string;
-    transactionId: BigNumber;
-}
-
-export interface AssetProxyOwnerSubmissionEventArgs extends DecodedLogArgs {
-    transactionId: BigNumber;
-}
-
-export interface AssetProxyOwnerExecutionEventArgs extends DecodedLogArgs {
-    transactionId: BigNumber;
-}
-
-export interface AssetProxyOwnerExecutionFailureEventArgs extends DecodedLogArgs {
-    transactionId: BigNumber;
-}
-
-export interface AssetProxyOwnerDepositEventArgs extends DecodedLogArgs {
-    sender: string;
-    value: BigNumber;
-}
-
-export interface AssetProxyOwnerOwnerAdditionEventArgs extends DecodedLogArgs {
-    owner: string;
-}
-
-export interface AssetProxyOwnerOwnerRemovalEventArgs extends DecodedLogArgs {
-    owner: string;
-}
-
-export interface AssetProxyOwnerRequirementChangeEventArgs extends DecodedLogArgs {
-    required: BigNumber;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class AssetProxyOwnerContract extends BaseContract {
-    public owners = {
-        async callAsync(
-            index_0: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'owners(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public removeOwner = {
-        async sendTransactionAsync(
-            owner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('removeOwner(address)');
-            const encodedData = abiEncoder.encode([owner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.removeOwner.estimateGasAsync.bind(
-                    self,
-                    owner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            owner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('removeOwner(address)');
-            const encodedData = abiEncoder.encode([owner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            owner: string,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('removeOwner(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([owner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'removeOwner(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public revokeConfirmation = {
-        async sendTransactionAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('revokeConfirmation(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.revokeConfirmation.estimateGasAsync.bind(
-                    self,
-                    transactionId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('revokeConfirmation(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            transactionId: BigNumber,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('revokeConfirmation(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([transactionId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'revokeConfirmation(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public isOwner = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'isOwner(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public confirmations = {
-        async callAsync(
-            index_0: BigNumber,
-            index_1: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'confirmations(uint256,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0,
-        index_1
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public executeRemoveAuthorizedAddressAtIndex = {
-        async sendTransactionAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('executeRemoveAuthorizedAddressAtIndex(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.executeRemoveAuthorizedAddressAtIndex.estimateGasAsync.bind(
-                    self,
-                    transactionId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('executeRemoveAuthorizedAddressAtIndex(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            transactionId: BigNumber,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('executeRemoveAuthorizedAddressAtIndex(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([transactionId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'executeRemoveAuthorizedAddressAtIndex(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public secondsTimeLocked = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'secondsTimeLocked()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getTransactionCount = {
-        async callAsync(
-            pending: boolean,
-            executed: boolean,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'getTransactionCount(bool,bool)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([pending,
-        executed
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public registerAssetProxy = {
-        async sendTransactionAsync(
-            assetProxyContract: string,
-            isRegistered: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('registerAssetProxy(address,bool)');
-            const encodedData = abiEncoder.encode([assetProxyContract,
-    isRegistered
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.registerAssetProxy.estimateGasAsync.bind(
-                    self,
-                    assetProxyContract,
-                    isRegistered
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            assetProxyContract: string,
-            isRegistered: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('registerAssetProxy(address,bool)');
-            const encodedData = abiEncoder.encode([assetProxyContract,
-    isRegistered
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            assetProxyContract: string,
-            isRegistered: boolean,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('registerAssetProxy(address,bool)');
-            const abiEncodedTransactionData = abiEncoder.encode([assetProxyContract,
-    isRegistered
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            assetProxyContract: string,
-            isRegistered: boolean,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'registerAssetProxy(address,bool)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([assetProxyContract,
-        isRegistered
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public addOwner = {
-        async sendTransactionAsync(
-            owner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('addOwner(address)');
-            const encodedData = abiEncoder.encode([owner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.addOwner.estimateGasAsync.bind(
-                    self,
-                    owner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            owner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('addOwner(address)');
-            const encodedData = abiEncoder.encode([owner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            owner: string,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('addOwner(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([owner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'addOwner(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public isConfirmed = {
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'isConfirmed(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public changeTimeLock = {
-        async sendTransactionAsync(
-            _secondsTimeLocked: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('changeTimeLock(uint256)');
-            const encodedData = abiEncoder.encode([_secondsTimeLocked
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.changeTimeLock.estimateGasAsync.bind(
-                    self,
-                    _secondsTimeLocked
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _secondsTimeLocked: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('changeTimeLock(uint256)');
-            const encodedData = abiEncoder.encode([_secondsTimeLocked
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _secondsTimeLocked: BigNumber,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('changeTimeLock(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_secondsTimeLocked
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _secondsTimeLocked: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'changeTimeLock(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_secondsTimeLocked
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public isAssetProxyRegistered = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'isAssetProxyRegistered(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getConfirmationCount = {
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'getConfirmationCount(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transactions = {
-        async callAsync(
-            index_0: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[string, BigNumber, string, boolean]
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'transactions(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getOwners = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string[]
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'getOwners()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getTransactionIds = {
-        async callAsync(
-            from: BigNumber,
-            to: BigNumber,
-            pending: boolean,
-            executed: boolean,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber[]
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'getTransactionIds(uint256,uint256,bool,bool)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([from,
-        to,
-        pending,
-        executed
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getConfirmations = {
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string[]
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'getConfirmations(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transactionCount = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'transactionCount()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public changeRequirement = {
-        async sendTransactionAsync(
-            _required: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('changeRequirement(uint256)');
-            const encodedData = abiEncoder.encode([_required
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.changeRequirement.estimateGasAsync.bind(
-                    self,
-                    _required
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _required: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('changeRequirement(uint256)');
-            const encodedData = abiEncoder.encode([_required
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _required: BigNumber,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('changeRequirement(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_required
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _required: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'changeRequirement(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_required
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public confirmTransaction = {
-        async sendTransactionAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('confirmTransaction(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.confirmTransaction.estimateGasAsync.bind(
-                    self,
-                    transactionId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('confirmTransaction(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            transactionId: BigNumber,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('confirmTransaction(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([transactionId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'confirmTransaction(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public submitTransaction = {
-        async sendTransactionAsync(
-            destination: string,
-            value: BigNumber,
-            data: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('submitTransaction(address,uint256,bytes)');
-            const encodedData = abiEncoder.encode([destination,
-    value,
-    data
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.submitTransaction.estimateGasAsync.bind(
-                    self,
-                    destination,
-                    value,
-                    data
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            destination: string,
-            value: BigNumber,
-            data: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('submitTransaction(address,uint256,bytes)');
-            const encodedData = abiEncoder.encode([destination,
-    value,
-    data
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            destination: string,
-            value: BigNumber,
-            data: string,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('submitTransaction(address,uint256,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([destination,
-    value,
-    data
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            destination: string,
-            value: BigNumber,
-            data: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'submitTransaction(address,uint256,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([destination,
-        value,
-        data
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public confirmationTimes = {
-        async callAsync(
-            index_0: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'confirmationTimes(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public MAX_OWNER_COUNT = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'MAX_OWNER_COUNT()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public required = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'required()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public replaceOwner = {
-        async sendTransactionAsync(
-            owner: string,
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('replaceOwner(address,address)');
-            const encodedData = abiEncoder.encode([owner,
-    newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.replaceOwner.estimateGasAsync.bind(
-                    self,
-                    owner,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            owner: string,
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('replaceOwner(address,address)');
-            const encodedData = abiEncoder.encode([owner,
-    newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            owner: string,
-            newOwner: string,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('replaceOwner(address,address)');
-            const abiEncodedTransactionData = abiEncoder.encode([owner,
-    newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            owner: string,
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'replaceOwner(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([owner,
-        newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public executeTransaction = {
-        async sendTransactionAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('executeTransaction(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.executeTransaction.estimateGasAsync.bind(
-                    self,
-                    transactionId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            transactionId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('executeTransaction(uint256)');
-            const encodedData = abiEncoder.encode([transactionId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            transactionId: BigNumber,
-        ): string {
-            const self = this as any as AssetProxyOwnerContract;
-            const abiEncoder = self._lookupAbiEncoder('executeTransaction(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([transactionId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            transactionId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as AssetProxyOwnerContract;
-            const functionSignature = 'executeTransaction(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([transactionId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _owners: string[],
-            _assetProxyContracts: string[],
-            _required: BigNumber,
-            _secondsTimeLocked: BigNumber,
-    ): Promise<AssetProxyOwnerContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return AssetProxyOwnerContract.deployAsync(bytecode, abi, provider, txDefaults, _owners,
-_assetProxyContracts,
-_required,
-_secondsTimeLocked
-);
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _owners: string[],
-            _assetProxyContracts: string[],
-            _required: BigNumber,
-            _secondsTimeLocked: BigNumber,
-    ): Promise<AssetProxyOwnerContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [_owners,
-_assetProxyContracts,
-_required,
-_secondsTimeLocked
-] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [_owners,
-_assetProxyContracts,
-_required,
-_secondsTimeLocked
-],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, [_owners,
-_assetProxyContracts,
-_required,
-_secondsTimeLocked
-]);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`AssetProxyOwner successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new AssetProxyOwnerContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [_owners,
-_assetProxyContracts,
-_required,
-_secondsTimeLocked
-];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('AssetProxyOwner', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/dummy_erc20_token.ts b/packages/abi-gen-wrappers/src/generated-wrappers/dummy_erc20_token.ts
deleted file mode 100644
index 6df58be56..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/dummy_erc20_token.ts
+++ /dev/null
@@ -1,818 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type DummyERC20TokenEventArgs =
-    | DummyERC20TokenTransferEventArgs
-    | DummyERC20TokenApprovalEventArgs;
-
-export enum DummyERC20TokenEvents {
-    Transfer = 'Transfer',
-    Approval = 'Approval',
-}
-
-export interface DummyERC20TokenTransferEventArgs extends DecodedLogArgs {
-    _from: string;
-    _to: string;
-    _value: BigNumber;
-}
-
-export interface DummyERC20TokenApprovalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _spender: string;
-    _value: BigNumber;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class DummyERC20TokenContract extends BaseContract {
-    public name = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'name()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public approve = {
-        async sendTransactionAsync(
-            _spender: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_spender,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.approve.estimateGasAsync.bind(
-                    self,
-                    _spender,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _spender: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_spender,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _spender: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_spender,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _spender: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'approve(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_spender,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public totalSupply = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'totalSupply()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferFrom = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferFrom.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'transferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public decimals = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'decimals()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public balanceOf = {
-        async callAsync(
-            _owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'balanceOf(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public owner = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'owner()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public symbol = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'symbol()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public mint = {
-        async sendTransactionAsync(
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('mint(uint256)');
-            const encodedData = abiEncoder.encode([_value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.mint.estimateGasAsync.bind(
-                    self,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('mint(uint256)');
-            const encodedData = abiEncoder.encode([_value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _value: BigNumber,
-        ): string {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('mint(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'mint(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public transfer = {
-        async sendTransactionAsync(
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transfer.estimateGasAsync.bind(
-                    self,
-                    _to,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _to: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_to,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _to: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'transfer(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_to,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public allowance = {
-        async callAsync(
-            _owner: string,
-            _spender: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'allowance(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner,
-        _spender
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public setBalance = {
-        async sendTransactionAsync(
-            _target: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setBalance(address,uint256)');
-            const encodedData = abiEncoder.encode([_target,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.setBalance.estimateGasAsync.bind(
-                    self,
-                    _target,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _target: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setBalance(address,uint256)');
-            const encodedData = abiEncoder.encode([_target,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _target: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setBalance(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_target,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _target: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'setBalance(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_target,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public transferOwnership = {
-        async sendTransactionAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferOwnership.estimateGasAsync.bind(
-                    self,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            newOwner: string,
-        ): string {
-            const self = this as any as DummyERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'transferOwnership(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public MAX_MINT_AMOUNT = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as DummyERC20TokenContract;
-            const functionSignature = 'MAX_MINT_AMOUNT()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _name: string,
-            _symbol: string,
-            _decimals: BigNumber,
-            _totalSupply: BigNumber,
-    ): Promise<DummyERC20TokenContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return DummyERC20TokenContract.deployAsync(bytecode, abi, provider, txDefaults, _name,
-_symbol,
-_decimals,
-_totalSupply
-);
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _name: string,
-            _symbol: string,
-            _decimals: BigNumber,
-            _totalSupply: BigNumber,
-    ): Promise<DummyERC20TokenContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [_name,
-_symbol,
-_decimals,
-_totalSupply
-] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [_name,
-_symbol,
-_decimals,
-_totalSupply
-],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, [_name,
-_symbol,
-_decimals,
-_totalSupply
-]);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`DummyERC20Token successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new DummyERC20TokenContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [_name,
-_symbol,
-_decimals,
-_totalSupply
-];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('DummyERC20Token', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/dummy_erc721_token.ts b/packages/abi-gen-wrappers/src/generated-wrappers/dummy_erc721_token.ts
deleted file mode 100644
index 7ac08e61f..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/dummy_erc721_token.ts
+++ /dev/null
@@ -1,1000 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type DummyERC721TokenEventArgs =
-    | DummyERC721TokenTransferEventArgs
-    | DummyERC721TokenApprovalEventArgs
-    | DummyERC721TokenApprovalForAllEventArgs;
-
-export enum DummyERC721TokenEvents {
-    Transfer = 'Transfer',
-    Approval = 'Approval',
-    ApprovalForAll = 'ApprovalForAll',
-}
-
-export interface DummyERC721TokenTransferEventArgs extends DecodedLogArgs {
-    _from: string;
-    _to: string;
-    _tokenId: BigNumber;
-}
-
-export interface DummyERC721TokenApprovalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _approved: string;
-    _tokenId: BigNumber;
-}
-
-export interface DummyERC721TokenApprovalForAllEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _operator: string;
-    _approved: boolean;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class DummyERC721TokenContract extends BaseContract {
-    public name = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'name()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getApproved = {
-        async callAsync(
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'getApproved(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public approve = {
-        async sendTransactionAsync(
-            _approved: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_approved,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.approve.estimateGasAsync.bind(
-                    self,
-                    _approved,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _approved: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_approved,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _approved: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_approved,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _approved: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'approve(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_approved,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public transferFrom = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferFrom.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'transferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public mint = {
-        async sendTransactionAsync(
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('mint(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.mint.estimateGasAsync.bind(
-                    self,
-                    _to,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('mint(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _to: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('mint(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_to,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _to: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'mint(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_to,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public safeTransferFrom1 = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.safeTransferFrom1.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'safeTransferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public ownerOf = {
-        async callAsync(
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'ownerOf(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public balanceOf = {
-        async callAsync(
-            _owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'balanceOf(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public owner = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'owner()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public symbol = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'symbol()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public burn = {
-        async sendTransactionAsync(
-            _owner: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('burn(address,uint256)');
-            const encodedData = abiEncoder.encode([_owner,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.burn.estimateGasAsync.bind(
-                    self,
-                    _owner,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _owner: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('burn(address,uint256)');
-            const encodedData = abiEncoder.encode([_owner,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _owner: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('burn(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_owner,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _owner: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'burn(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public setApprovalForAll = {
-        async sendTransactionAsync(
-            _operator: string,
-            _approved: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setApprovalForAll(address,bool)');
-            const encodedData = abiEncoder.encode([_operator,
-    _approved
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.setApprovalForAll.estimateGasAsync.bind(
-                    self,
-                    _operator,
-                    _approved
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _operator: string,
-            _approved: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setApprovalForAll(address,bool)');
-            const encodedData = abiEncoder.encode([_operator,
-    _approved
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _operator: string,
-            _approved: boolean,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setApprovalForAll(address,bool)');
-            const abiEncodedTransactionData = abiEncoder.encode([_operator,
-    _approved
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _operator: string,
-            _approved: boolean,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'setApprovalForAll(address,bool)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_operator,
-        _approved
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public safeTransferFrom2 = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256,bytes)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId,
-    _data
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.safeTransferFrom2.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _tokenId,
-                    _data
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256,bytes)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId,
-    _data
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _tokenId,
-    _data
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'safeTransferFrom(address,address,uint256,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _tokenId,
-        _data
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public isApprovedForAll = {
-        async callAsync(
-            _owner: string,
-            _operator: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'isApprovedForAll(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner,
-        _operator
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferOwnership = {
-        async sendTransactionAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferOwnership.estimateGasAsync.bind(
-                    self,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            newOwner: string,
-        ): string {
-            const self = this as any as DummyERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as DummyERC721TokenContract;
-            const functionSignature = 'transferOwnership(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _name: string,
-            _symbol: string,
-    ): Promise<DummyERC721TokenContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return DummyERC721TokenContract.deployAsync(bytecode, abi, provider, txDefaults, _name,
-_symbol
-);
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _name: string,
-            _symbol: string,
-    ): Promise<DummyERC721TokenContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [_name,
-_symbol
-] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [_name,
-_symbol
-],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, [_name,
-_symbol
-]);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`DummyERC721Token successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new DummyERC721TokenContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [_name,
-_symbol
-];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('DummyERC721Token', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/erc20_proxy.ts b/packages/abi-gen-wrappers/src/generated-wrappers/erc20_proxy.ts
deleted file mode 100644
index 8f910eaf9..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/erc20_proxy.ts
+++ /dev/null
@@ -1,524 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type ERC20ProxyEventArgs =
-    | ERC20ProxyAuthorizedAddressAddedEventArgs
-    | ERC20ProxyAuthorizedAddressRemovedEventArgs;
-
-export enum ERC20ProxyEvents {
-    AuthorizedAddressAdded = 'AuthorizedAddressAdded',
-    AuthorizedAddressRemoved = 'AuthorizedAddressRemoved',
-}
-
-export interface ERC20ProxyAuthorizedAddressAddedEventArgs extends DecodedLogArgs {
-    target: string;
-    caller: string;
-}
-
-export interface ERC20ProxyAuthorizedAddressRemovedEventArgs extends DecodedLogArgs {
-    target: string;
-    caller: string;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ERC20ProxyContract extends BaseContract {
-    public addAuthorizedAddress = {
-        async sendTransactionAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('addAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.addAuthorizedAddress.estimateGasAsync.bind(
-                    self,
-                    target
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('addAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            target: string,
-        ): string {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('addAuthorizedAddress(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([target
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            target: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'addAuthorizedAddress(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public authorities = {
-        async callAsync(
-            index_0: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'authorities(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public removeAuthorizedAddress = {
-        async sendTransactionAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.removeAuthorizedAddress.estimateGasAsync.bind(
-                    self,
-                    target
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            target: string,
-        ): string {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddress(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([target
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            target: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'removeAuthorizedAddress(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public owner = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'owner()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public removeAuthorizedAddressAtIndex = {
-        async sendTransactionAsync(
-            target: string,
-            index: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddressAtIndex(address,uint256)');
-            const encodedData = abiEncoder.encode([target,
-    index
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.removeAuthorizedAddressAtIndex.estimateGasAsync.bind(
-                    self,
-                    target,
-                    index
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            target: string,
-            index: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddressAtIndex(address,uint256)');
-            const encodedData = abiEncoder.encode([target,
-    index
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            target: string,
-            index: BigNumber,
-        ): string {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddressAtIndex(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([target,
-    index
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            target: string,
-            index: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'removeAuthorizedAddressAtIndex(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target,
-        index
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getProxyId = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'getProxyId()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public authorized = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'authorized(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getAuthorizedAddresses = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string[]
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'getAuthorizedAddresses()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferOwnership = {
-        async sendTransactionAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferOwnership.estimateGasAsync.bind(
-                    self,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            newOwner: string,
-        ): string {
-            const self = this as any as ERC20ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC20ProxyContract;
-            const functionSignature = 'transferOwnership(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC20ProxyContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ERC20ProxyContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC20ProxyContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`ERC20Proxy successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ERC20ProxyContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('ERC20Proxy', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/erc20_token.ts b/packages/abi-gen-wrappers/src/generated-wrappers/erc20_token.ts
deleted file mode 100644
index b9aa50429..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/erc20_token.ts
+++ /dev/null
@@ -1,430 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type ERC20TokenEventArgs =
-    | ERC20TokenTransferEventArgs
-    | ERC20TokenApprovalEventArgs;
-
-export enum ERC20TokenEvents {
-    Transfer = 'Transfer',
-    Approval = 'Approval',
-}
-
-export interface ERC20TokenTransferEventArgs extends DecodedLogArgs {
-    _from: string;
-    _to: string;
-    _value: BigNumber;
-}
-
-export interface ERC20TokenApprovalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _spender: string;
-    _value: BigNumber;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ERC20TokenContract extends BaseContract {
-    public approve = {
-        async sendTransactionAsync(
-            _spender: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_spender,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.approve.estimateGasAsync.bind(
-                    self,
-                    _spender,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _spender: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_spender,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _spender: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_spender,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _spender: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ERC20TokenContract;
-            const functionSignature = 'approve(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_spender,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public totalSupply = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ERC20TokenContract;
-            const functionSignature = 'totalSupply()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferFrom = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferFrom.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ERC20TokenContract;
-            const functionSignature = 'transferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public balanceOf = {
-        async callAsync(
-            _owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ERC20TokenContract;
-            const functionSignature = 'balanceOf(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transfer = {
-        async sendTransactionAsync(
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transfer.estimateGasAsync.bind(
-                    self,
-                    _to,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _to: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as ERC20TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_to,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _to: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ERC20TokenContract;
-            const functionSignature = 'transfer(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_to,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public allowance = {
-        async callAsync(
-            _owner: string,
-            _spender: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ERC20TokenContract;
-            const functionSignature = 'allowance(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner,
-        _spender
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC20TokenContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ERC20TokenContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC20TokenContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`ERC20Token successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ERC20TokenContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('ERC20Token', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/erc721_proxy.ts b/packages/abi-gen-wrappers/src/generated-wrappers/erc721_proxy.ts
deleted file mode 100644
index 5ff11f35f..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/erc721_proxy.ts
+++ /dev/null
@@ -1,524 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type ERC721ProxyEventArgs =
-    | ERC721ProxyAuthorizedAddressAddedEventArgs
-    | ERC721ProxyAuthorizedAddressRemovedEventArgs;
-
-export enum ERC721ProxyEvents {
-    AuthorizedAddressAdded = 'AuthorizedAddressAdded',
-    AuthorizedAddressRemoved = 'AuthorizedAddressRemoved',
-}
-
-export interface ERC721ProxyAuthorizedAddressAddedEventArgs extends DecodedLogArgs {
-    target: string;
-    caller: string;
-}
-
-export interface ERC721ProxyAuthorizedAddressRemovedEventArgs extends DecodedLogArgs {
-    target: string;
-    caller: string;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ERC721ProxyContract extends BaseContract {
-    public addAuthorizedAddress = {
-        async sendTransactionAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('addAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.addAuthorizedAddress.estimateGasAsync.bind(
-                    self,
-                    target
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('addAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            target: string,
-        ): string {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('addAuthorizedAddress(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([target
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            target: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'addAuthorizedAddress(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public authorities = {
-        async callAsync(
-            index_0: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'authorities(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public removeAuthorizedAddress = {
-        async sendTransactionAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.removeAuthorizedAddress.estimateGasAsync.bind(
-                    self,
-                    target
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            target: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddress(address)');
-            const encodedData = abiEncoder.encode([target
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            target: string,
-        ): string {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddress(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([target
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            target: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'removeAuthorizedAddress(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public owner = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'owner()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public removeAuthorizedAddressAtIndex = {
-        async sendTransactionAsync(
-            target: string,
-            index: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddressAtIndex(address,uint256)');
-            const encodedData = abiEncoder.encode([target,
-    index
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.removeAuthorizedAddressAtIndex.estimateGasAsync.bind(
-                    self,
-                    target,
-                    index
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            target: string,
-            index: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddressAtIndex(address,uint256)');
-            const encodedData = abiEncoder.encode([target,
-    index
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            target: string,
-            index: BigNumber,
-        ): string {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('removeAuthorizedAddressAtIndex(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([target,
-    index
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            target: string,
-            index: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'removeAuthorizedAddressAtIndex(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target,
-        index
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getProxyId = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'getProxyId()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public authorized = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'authorized(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getAuthorizedAddresses = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string[]
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'getAuthorizedAddresses()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferOwnership = {
-        async sendTransactionAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferOwnership.estimateGasAsync.bind(
-                    self,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            newOwner: string,
-        ): string {
-            const self = this as any as ERC721ProxyContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721ProxyContract;
-            const functionSignature = 'transferOwnership(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC721ProxyContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ERC721ProxyContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC721ProxyContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`ERC721Proxy successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ERC721ProxyContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('ERC721Proxy', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/erc721_token.ts b/packages/abi-gen-wrappers/src/generated-wrappers/erc721_token.ts
deleted file mode 100644
index 83951cef8..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/erc721_token.ts
+++ /dev/null
@@ -1,665 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type ERC721TokenEventArgs =
-    | ERC721TokenTransferEventArgs
-    | ERC721TokenApprovalEventArgs
-    | ERC721TokenApprovalForAllEventArgs;
-
-export enum ERC721TokenEvents {
-    Transfer = 'Transfer',
-    Approval = 'Approval',
-    ApprovalForAll = 'ApprovalForAll',
-}
-
-export interface ERC721TokenTransferEventArgs extends DecodedLogArgs {
-    _from: string;
-    _to: string;
-    _tokenId: BigNumber;
-}
-
-export interface ERC721TokenApprovalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _approved: string;
-    _tokenId: BigNumber;
-}
-
-export interface ERC721TokenApprovalForAllEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _operator: string;
-    _approved: boolean;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ERC721TokenContract extends BaseContract {
-    public getApproved = {
-        async callAsync(
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'getApproved(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public approve = {
-        async sendTransactionAsync(
-            _approved: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_approved,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.approve.estimateGasAsync.bind(
-                    self,
-                    _approved,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _approved: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_approved,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _approved: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_approved,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _approved: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'approve(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_approved,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public transferFrom = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferFrom.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'transferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public safeTransferFrom1 = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.safeTransferFrom1.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _tokenId
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-        ): string {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _tokenId
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'safeTransferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public ownerOf = {
-        async callAsync(
-            _tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'ownerOf(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public balanceOf = {
-        async callAsync(
-            _owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'balanceOf(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public setApprovalForAll = {
-        async sendTransactionAsync(
-            _operator: string,
-            _approved: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setApprovalForAll(address,bool)');
-            const encodedData = abiEncoder.encode([_operator,
-    _approved
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.setApprovalForAll.estimateGasAsync.bind(
-                    self,
-                    _operator,
-                    _approved
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _operator: string,
-            _approved: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setApprovalForAll(address,bool)');
-            const encodedData = abiEncoder.encode([_operator,
-    _approved
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _operator: string,
-            _approved: boolean,
-        ): string {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('setApprovalForAll(address,bool)');
-            const abiEncodedTransactionData = abiEncoder.encode([_operator,
-    _approved
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _operator: string,
-            _approved: boolean,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'setApprovalForAll(address,bool)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_operator,
-        _approved
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public safeTransferFrom2 = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256,bytes)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId,
-    _data
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.safeTransferFrom2.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _tokenId,
-                    _data
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256,bytes)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _tokenId,
-    _data
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-        ): string {
-            const self = this as any as ERC721TokenContract;
-            const abiEncoder = self._lookupAbiEncoder('safeTransferFrom(address,address,uint256,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _tokenId,
-    _data
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _tokenId: BigNumber,
-            _data: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'safeTransferFrom(address,address,uint256,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _tokenId,
-        _data
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public isApprovedForAll = {
-        async callAsync(
-            _owner: string,
-            _operator: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ERC721TokenContract;
-            const functionSignature = 'isApprovedForAll(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner,
-        _operator
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC721TokenContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ERC721TokenContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ERC721TokenContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`ERC721Token successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ERC721TokenContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('ERC721Token', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/exchange.ts b/packages/abi-gen-wrappers/src/generated-wrappers/exchange.ts
deleted file mode 100644
index f4cdeaaf9..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/exchange.ts
+++ /dev/null
@@ -1,2266 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type ExchangeEventArgs =
-    | ExchangeSignatureValidatorApprovalEventArgs
-    | ExchangeFillEventArgs
-    | ExchangeCancelEventArgs
-    | ExchangeCancelUpToEventArgs
-    | ExchangeAssetProxyRegisteredEventArgs;
-
-export enum ExchangeEvents {
-    SignatureValidatorApproval = 'SignatureValidatorApproval',
-    Fill = 'Fill',
-    Cancel = 'Cancel',
-    CancelUpTo = 'CancelUpTo',
-    AssetProxyRegistered = 'AssetProxyRegistered',
-}
-
-export interface ExchangeSignatureValidatorApprovalEventArgs extends DecodedLogArgs {
-    signerAddress: string;
-    validatorAddress: string;
-    approved: boolean;
-}
-
-export interface ExchangeFillEventArgs extends DecodedLogArgs {
-    makerAddress: string;
-    feeRecipientAddress: string;
-    takerAddress: string;
-    senderAddress: string;
-    makerAssetFilledAmount: BigNumber;
-    takerAssetFilledAmount: BigNumber;
-    makerFeePaid: BigNumber;
-    takerFeePaid: BigNumber;
-    orderHash: string;
-    makerAssetData: string;
-    takerAssetData: string;
-}
-
-export interface ExchangeCancelEventArgs extends DecodedLogArgs {
-    makerAddress: string;
-    feeRecipientAddress: string;
-    senderAddress: string;
-    orderHash: string;
-    makerAssetData: string;
-    takerAssetData: string;
-}
-
-export interface ExchangeCancelUpToEventArgs extends DecodedLogArgs {
-    makerAddress: string;
-    senderAddress: string;
-    orderEpoch: BigNumber;
-}
-
-export interface ExchangeAssetProxyRegisteredEventArgs extends DecodedLogArgs {
-    id: string;
-    assetProxy: string;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ExchangeContract extends BaseContract {
-    public filled = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'filled(bytes32)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public batchFillOrders = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.batchFillOrders.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    takerAssetFillAmounts,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'batchFillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAssetFillAmounts,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public cancelled = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'cancelled(bytes32)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public preSign = {
-        async sendTransactionAsync(
-            hash: string,
-            signerAddress: string,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('preSign(bytes32,address,bytes)');
-            const encodedData = abiEncoder.encode([hash,
-    signerAddress,
-    signature
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.preSign.estimateGasAsync.bind(
-                    self,
-                    hash,
-                    signerAddress,
-                    signature
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            hash: string,
-            signerAddress: string,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('preSign(bytes32,address,bytes)');
-            const encodedData = abiEncoder.encode([hash,
-    signerAddress,
-    signature
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            hash: string,
-            signerAddress: string,
-            signature: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('preSign(bytes32,address,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([hash,
-    signerAddress,
-    signature
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            hash: string,
-            signerAddress: string,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'preSign(bytes32,address,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([hash,
-        signerAddress,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public matchOrders = {
-        async sendTransactionAsync(
-            leftOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            rightOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            leftSignature: string,
-            rightSignature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('matchOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),bytes,bytes)');
-            const encodedData = abiEncoder.encode([leftOrder,
-    rightOrder,
-    leftSignature,
-    rightSignature
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.matchOrders.estimateGasAsync.bind(
-                    self,
-                    leftOrder,
-                    rightOrder,
-                    leftSignature,
-                    rightSignature
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            leftOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            rightOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            leftSignature: string,
-            rightSignature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('matchOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),bytes,bytes)');
-            const encodedData = abiEncoder.encode([leftOrder,
-    rightOrder,
-    leftSignature,
-    rightSignature
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            leftOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            rightOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            leftSignature: string,
-            rightSignature: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('matchOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),bytes,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([leftOrder,
-    rightOrder,
-    leftSignature,
-    rightSignature
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            leftOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            rightOrder: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            leftSignature: string,
-            rightSignature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{left: {makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber};right: {makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber};leftMakerAssetSpreadAmount: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'matchOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),bytes,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([leftOrder,
-        rightOrder,
-        leftSignature,
-        rightSignature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public fillOrderNoThrow = {
-        async sendTransactionAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrderNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const encodedData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.fillOrderNoThrow.estimateGasAsync.bind(
-                    self,
-                    order,
-                    takerAssetFillAmount,
-                    signature
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrderNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const encodedData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrderNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'fillOrderNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order,
-        takerAssetFillAmount,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public assetProxies = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'assetProxies(bytes4)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public batchCancelOrders = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchCancelOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[])');
-            const encodedData = abiEncoder.encode([orders
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.batchCancelOrders.estimateGasAsync.bind(
-                    self,
-                    orders
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchCancelOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[])');
-            const encodedData = abiEncoder.encode([orders
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchCancelOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'batchCancelOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public batchFillOrKillOrders = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrKillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.batchFillOrKillOrders.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    takerAssetFillAmounts,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrKillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrKillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'batchFillOrKillOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAssetFillAmounts,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public cancelOrdersUpTo = {
-        async sendTransactionAsync(
-            targetOrderEpoch: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('cancelOrdersUpTo(uint256)');
-            const encodedData = abiEncoder.encode([targetOrderEpoch
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.cancelOrdersUpTo.estimateGasAsync.bind(
-                    self,
-                    targetOrderEpoch
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            targetOrderEpoch: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('cancelOrdersUpTo(uint256)');
-            const encodedData = abiEncoder.encode([targetOrderEpoch
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            targetOrderEpoch: BigNumber,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('cancelOrdersUpTo(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([targetOrderEpoch
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            targetOrderEpoch: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'cancelOrdersUpTo(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([targetOrderEpoch
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public batchFillOrdersNoThrow = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.batchFillOrdersNoThrow.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    takerAssetFillAmounts,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('batchFillOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    takerAssetFillAmounts,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmounts: BigNumber[],
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'batchFillOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256[],bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAssetFillAmounts,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getAssetProxy = {
-        async callAsync(
-            assetProxyId: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'getAssetProxy(bytes4)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([assetProxyId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transactions = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'transactions(bytes32)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public fillOrKillOrder = {
-        async sendTransactionAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrKillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const encodedData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.fillOrKillOrder.estimateGasAsync.bind(
-                    self,
-                    order,
-                    takerAssetFillAmount,
-                    signature
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrKillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const encodedData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrKillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'fillOrKillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order,
-        takerAssetFillAmount,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public setSignatureValidatorApproval = {
-        async sendTransactionAsync(
-            validatorAddress: string,
-            approval: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('setSignatureValidatorApproval(address,bool)');
-            const encodedData = abiEncoder.encode([validatorAddress,
-    approval
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.setSignatureValidatorApproval.estimateGasAsync.bind(
-                    self,
-                    validatorAddress,
-                    approval
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            validatorAddress: string,
-            approval: boolean,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('setSignatureValidatorApproval(address,bool)');
-            const encodedData = abiEncoder.encode([validatorAddress,
-    approval
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            validatorAddress: string,
-            approval: boolean,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('setSignatureValidatorApproval(address,bool)');
-            const abiEncodedTransactionData = abiEncoder.encode([validatorAddress,
-    approval
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            validatorAddress: string,
-            approval: boolean,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'setSignatureValidatorApproval(address,bool)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([validatorAddress,
-        approval
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public allowedValidators = {
-        async callAsync(
-            index_0: string,
-            index_1: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'allowedValidators(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0,
-        index_1
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public marketSellOrders = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmount,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.marketSellOrders.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    takerAssetFillAmount,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmount,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    takerAssetFillAmount,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'marketSellOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAssetFillAmount,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getOrdersInfo = {
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<Array<{orderStatus: number;orderHash: string;orderTakerAssetFilledAmount: BigNumber}>
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'getOrdersInfo((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public preSigned = {
-        async callAsync(
-            index_0: string,
-            index_1: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'preSigned(bytes32,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0,
-        index_1
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public owner = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'owner()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public isValidSignature = {
-        async callAsync(
-            hash: string,
-            signerAddress: string,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'isValidSignature(bytes32,address,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([hash,
-        signerAddress,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public marketBuyOrdersNoThrow = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.marketBuyOrdersNoThrow.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    makerAssetFillAmount,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'marketBuyOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        makerAssetFillAmount,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public fillOrder = {
-        async sendTransactionAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const encodedData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.fillOrder.estimateGasAsync.bind(
-                    self,
-                    order,
-                    takerAssetFillAmount,
-                    signature
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const encodedData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('fillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([order,
-    takerAssetFillAmount,
-    signature
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAssetFillAmount: BigNumber,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'fillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order,
-        takerAssetFillAmount,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public executeTransaction = {
-        async sendTransactionAsync(
-            salt: BigNumber,
-            signerAddress: string,
-            data: string,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('executeTransaction(uint256,address,bytes,bytes)');
-            const encodedData = abiEncoder.encode([salt,
-    signerAddress,
-    data,
-    signature
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.executeTransaction.estimateGasAsync.bind(
-                    self,
-                    salt,
-                    signerAddress,
-                    data,
-                    signature
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            salt: BigNumber,
-            signerAddress: string,
-            data: string,
-            signature: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('executeTransaction(uint256,address,bytes,bytes)');
-            const encodedData = abiEncoder.encode([salt,
-    signerAddress,
-    data,
-    signature
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            salt: BigNumber,
-            signerAddress: string,
-            data: string,
-            signature: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('executeTransaction(uint256,address,bytes,bytes)');
-            const abiEncodedTransactionData = abiEncoder.encode([salt,
-    signerAddress,
-    data,
-    signature
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            salt: BigNumber,
-            signerAddress: string,
-            data: string,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'executeTransaction(uint256,address,bytes,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([salt,
-        signerAddress,
-        data,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public registerAssetProxy = {
-        async sendTransactionAsync(
-            assetProxy: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('registerAssetProxy(address)');
-            const encodedData = abiEncoder.encode([assetProxy
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.registerAssetProxy.estimateGasAsync.bind(
-                    self,
-                    assetProxy
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            assetProxy: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('registerAssetProxy(address)');
-            const encodedData = abiEncoder.encode([assetProxy
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            assetProxy: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('registerAssetProxy(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([assetProxy
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            assetProxy: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'registerAssetProxy(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([assetProxy
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getOrderInfo = {
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{orderStatus: number;orderHash: string;orderTakerAssetFilledAmount: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'getOrderInfo((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes))';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public cancelOrder = {
-        async sendTransactionAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('cancelOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes))');
-            const encodedData = abiEncoder.encode([order
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.cancelOrder.estimateGasAsync.bind(
-                    self,
-                    order
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('cancelOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes))');
-            const encodedData = abiEncoder.encode([order
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('cancelOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes))');
-            const abiEncodedTransactionData = abiEncoder.encode([order
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'cancelOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes))';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public orderEpoch = {
-        async callAsync(
-            index_0: string,
-            index_1: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'orderEpoch(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0,
-        index_1
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public ZRX_ASSET_DATA = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'ZRX_ASSET_DATA()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public marketSellOrdersNoThrow = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmount,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.marketSellOrdersNoThrow.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    takerAssetFillAmount,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    takerAssetFillAmount,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    takerAssetFillAmount,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAssetFillAmount: BigNumber,
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'marketSellOrdersNoThrow((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAssetFillAmount,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public EIP712_DOMAIN_HASH = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'EIP712_DOMAIN_HASH()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public marketBuyOrders = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.marketBuyOrders.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    makerAssetFillAmount,
-                    signatures
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const encodedData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'marketBuyOrders((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        makerAssetFillAmount,
-        signatures
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public currentContextAddress = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'currentContextAddress()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferOwnership = {
-        async sendTransactionAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferOwnership.estimateGasAsync.bind(
-                    self,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            newOwner: string,
-        ): string {
-            const self = this as any as ExchangeContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'transferOwnership(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public VERSION = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ExchangeContract;
-            const functionSignature = 'VERSION()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _zrxAssetData: string,
-    ): Promise<ExchangeContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ExchangeContract.deployAsync(bytecode, abi, provider, txDefaults, _zrxAssetData
-);
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _zrxAssetData: string,
-    ): Promise<ExchangeContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [_zrxAssetData
-] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [_zrxAssetData
-],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, [_zrxAssetData
-]);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`Exchange successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ExchangeContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [_zrxAssetData
-];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('Exchange', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/forwarder.ts b/packages/abi-gen-wrappers/src/generated-wrappers/forwarder.ts
deleted file mode 100644
index d0797eccd..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/forwarder.ts
+++ /dev/null
@@ -1,525 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ForwarderContract extends BaseContract {
-    public marketBuyOrdersWithEth = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-            txData: Partial<TxDataPayable> = {},
-        ): Promise<string> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)');
-            const encodedData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures,
-    feeOrders,
-    feeSignatures,
-    feePercentage,
-    feeRecipient
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.marketBuyOrdersWithEth.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    makerAssetFillAmount,
-                    signatures,
-                    feeOrders,
-                    feeSignatures,
-                    feePercentage,
-                    feeRecipient
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)');
-            const encodedData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures,
-    feeOrders,
-    feeSignatures,
-    feePercentage,
-    feeRecipient
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-        ): string {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('marketBuyOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    makerAssetFillAmount,
-    signatures,
-    feeOrders,
-    feeSignatures,
-    feePercentage,
-    feeRecipient
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            makerAssetFillAmount: BigNumber,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}, {makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}]
-        > {
-            const self = this as any as ForwarderContract;
-            const functionSignature = 'marketBuyOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],uint256,bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        makerAssetFillAmount,
-        signatures,
-        feeOrders,
-        feeSignatures,
-        feePercentage,
-        feeRecipient
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public withdrawAsset = {
-        async sendTransactionAsync(
-            assetData: string,
-            amount: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('withdrawAsset(bytes,uint256)');
-            const encodedData = abiEncoder.encode([assetData,
-    amount
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.withdrawAsset.estimateGasAsync.bind(
-                    self,
-                    assetData,
-                    amount
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            assetData: string,
-            amount: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('withdrawAsset(bytes,uint256)');
-            const encodedData = abiEncoder.encode([assetData,
-    amount
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            assetData: string,
-            amount: BigNumber,
-        ): string {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('withdrawAsset(bytes,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([assetData,
-    amount
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            assetData: string,
-            amount: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ForwarderContract;
-            const functionSignature = 'withdrawAsset(bytes,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([assetData,
-        amount
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public owner = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ForwarderContract;
-            const functionSignature = 'owner()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public marketSellOrdersWithEth = {
-        async sendTransactionAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-            txData: Partial<TxDataPayable> = {},
-        ): Promise<string> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)');
-            const encodedData = abiEncoder.encode([orders,
-    signatures,
-    feeOrders,
-    feeSignatures,
-    feePercentage,
-    feeRecipient
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.marketSellOrdersWithEth.estimateGasAsync.bind(
-                    self,
-                    orders,
-                    signatures,
-                    feeOrders,
-                    feeSignatures,
-                    feePercentage,
-                    feeRecipient
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)');
-            const encodedData = abiEncoder.encode([orders,
-    signatures,
-    feeOrders,
-    feeSignatures,
-    feePercentage,
-    feeRecipient
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-        ): string {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('marketSellOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)');
-            const abiEncodedTransactionData = abiEncoder.encode([orders,
-    signatures,
-    feeOrders,
-    feeSignatures,
-    feePercentage,
-    feeRecipient
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            signatures: string[],
-            feeOrders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            feeSignatures: string[],
-            feePercentage: BigNumber,
-            feeRecipient: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[{makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}, {makerAssetFilledAmount: BigNumber;takerAssetFilledAmount: BigNumber;makerFeePaid: BigNumber;takerFeePaid: BigNumber}]
-        > {
-            const self = this as any as ForwarderContract;
-            const functionSignature = 'marketSellOrdersWithEth((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],(address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],bytes[],uint256,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        signatures,
-        feeOrders,
-        feeSignatures,
-        feePercentage,
-        feeRecipient
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public transferOwnership = {
-        async sendTransactionAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferOwnership.estimateGasAsync.bind(
-                    self,
-                    newOwner
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            newOwner: string,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const encodedData = abiEncoder.encode([newOwner
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            newOwner: string,
-        ): string {
-            const self = this as any as ForwarderContract;
-            const abiEncoder = self._lookupAbiEncoder('transferOwnership(address)');
-            const abiEncodedTransactionData = abiEncoder.encode([newOwner
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            newOwner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as ForwarderContract;
-            const functionSignature = 'transferOwnership(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([newOwner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _exchange: string,
-            _zrxAssetData: string,
-            _wethAssetData: string,
-    ): Promise<ForwarderContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ForwarderContract.deployAsync(bytecode, abi, provider, txDefaults, _exchange,
-_zrxAssetData,
-_wethAssetData
-);
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _exchange: string,
-            _zrxAssetData: string,
-            _wethAssetData: string,
-    ): Promise<ForwarderContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [_exchange,
-_zrxAssetData,
-_wethAssetData
-] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [_exchange,
-_zrxAssetData,
-_wethAssetData
-],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, [_exchange,
-_zrxAssetData,
-_wethAssetData
-]);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`Forwarder successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ForwarderContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [_exchange,
-_zrxAssetData,
-_wethAssetData
-];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('Forwarder', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts b/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts
deleted file mode 100644
index cabaeeb98..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts
+++ /dev/null
@@ -1,94 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class IValidatorContract extends BaseContract {
-    public isValidSignature = {
-        async callAsync(
-            hash: string,
-            signerAddress: string,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as IValidatorContract;
-            const functionSignature = 'isValidSignature(bytes32,address,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([hash,
-        signerAddress,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<IValidatorContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return IValidatorContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<IValidatorContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`IValidator successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new IValidatorContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('IValidator', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/i_wallet.ts b/packages/abi-gen-wrappers/src/generated-wrappers/i_wallet.ts
deleted file mode 100644
index 9d54ca0c1..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/i_wallet.ts
+++ /dev/null
@@ -1,92 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class IWalletContract extends BaseContract {
-    public isValidSignature = {
-        async callAsync(
-            hash: string,
-            signature: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as IWalletContract;
-            const functionSignature = 'isValidSignature(bytes32,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([hash,
-        signature
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<IWalletContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return IWalletContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<IWalletContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`IWallet successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new IWalletContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('IWallet', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/order_validator.ts b/packages/abi-gen-wrappers/src/generated-wrappers/order_validator.ts
deleted file mode 100644
index 5740af4ab..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/order_validator.ts
+++ /dev/null
@@ -1,274 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class OrderValidatorContract extends BaseContract {
-    public getOrderAndTraderInfo = {
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAddress: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[{orderStatus: number;orderHash: string;orderTakerAssetFilledAmount: BigNumber}, {makerBalance: BigNumber;makerAllowance: BigNumber;takerBalance: BigNumber;takerAllowance: BigNumber;makerZrxBalance: BigNumber;makerZrxAllowance: BigNumber;takerZrxBalance: BigNumber;takerZrxAllowance: BigNumber}]
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getOrderAndTraderInfo((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order,
-        takerAddress
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getBalanceAndAllowance = {
-        async callAsync(
-            target: string,
-            assetData: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[BigNumber, BigNumber]
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getBalanceAndAllowance(address,bytes)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target,
-        assetData
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getOrdersAndTradersInfo = {
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAddresses: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[Array<{orderStatus: number;orderHash: string;orderTakerAssetFilledAmount: BigNumber}>, Array<{makerBalance: BigNumber;makerAllowance: BigNumber;takerBalance: BigNumber;takerAllowance: BigNumber;makerZrxBalance: BigNumber;makerZrxAllowance: BigNumber;takerZrxBalance: BigNumber;takerZrxAllowance: BigNumber}>]
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getOrdersAndTradersInfo((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],address[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAddresses
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getTradersInfo = {
-        async callAsync(
-            orders: Array<{makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string}>,
-            takerAddresses: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<Array<{makerBalance: BigNumber;makerAllowance: BigNumber;takerBalance: BigNumber;takerAllowance: BigNumber;makerZrxBalance: BigNumber;makerZrxAllowance: BigNumber;takerZrxBalance: BigNumber;takerZrxAllowance: BigNumber}>
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getTradersInfo((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes)[],address[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([orders,
-        takerAddresses
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getERC721TokenOwner = {
-        async callAsync(
-            token: string,
-            tokenId: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getERC721TokenOwner(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([token,
-        tokenId
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public getBalancesAndAllowances = {
-        async callAsync(
-            target: string,
-            assetData: string[],
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<[BigNumber[], BigNumber[]]
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getBalancesAndAllowances(address,bytes[])';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([target,
-        assetData
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public getTraderInfo = {
-        async callAsync(
-            order: {makerAddress: string;takerAddress: string;feeRecipientAddress: string;senderAddress: string;makerAssetAmount: BigNumber;takerAssetAmount: BigNumber;makerFee: BigNumber;takerFee: BigNumber;expirationTimeSeconds: BigNumber;salt: BigNumber;makerAssetData: string;takerAssetData: string},
-            takerAddress: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<{makerBalance: BigNumber;makerAllowance: BigNumber;takerBalance: BigNumber;takerAllowance: BigNumber;makerZrxBalance: BigNumber;makerZrxAllowance: BigNumber;takerZrxBalance: BigNumber;takerZrxAllowance: BigNumber}
-        > {
-            const self = this as any as OrderValidatorContract;
-            const functionSignature = 'getTraderInfo((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([order,
-        takerAddress
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _exchange: string,
-            _zrxAssetData: string,
-    ): Promise<OrderValidatorContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return OrderValidatorContract.deployAsync(bytecode, abi, provider, txDefaults, _exchange,
-_zrxAssetData
-);
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-            _exchange: string,
-            _zrxAssetData: string,
-    ): Promise<OrderValidatorContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [_exchange,
-_zrxAssetData
-] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [_exchange,
-_zrxAssetData
-],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, [_exchange,
-_zrxAssetData
-]);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`OrderValidator successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new OrderValidatorContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [_exchange,
-_zrxAssetData
-];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('OrderValidator', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/weth9.ts b/packages/abi-gen-wrappers/src/generated-wrappers/weth9.ts
deleted file mode 100644
index 773ecb9d3..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/weth9.ts
+++ /dev/null
@@ -1,661 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type WETH9EventArgs =
-    | WETH9ApprovalEventArgs
-    | WETH9TransferEventArgs
-    | WETH9DepositEventArgs
-    | WETH9WithdrawalEventArgs;
-
-export enum WETH9Events {
-    Approval = 'Approval',
-    Transfer = 'Transfer',
-    Deposit = 'Deposit',
-    Withdrawal = 'Withdrawal',
-}
-
-export interface WETH9ApprovalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _spender: string;
-    _value: BigNumber;
-}
-
-export interface WETH9TransferEventArgs extends DecodedLogArgs {
-    _from: string;
-    _to: string;
-    _value: BigNumber;
-}
-
-export interface WETH9DepositEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _value: BigNumber;
-}
-
-export interface WETH9WithdrawalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _value: BigNumber;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class WETH9Contract extends BaseContract {
-    public name = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'name()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public approve = {
-        async sendTransactionAsync(
-            guy: string,
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([guy,
-    wad
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.approve.estimateGasAsync.bind(
-                    self,
-                    guy,
-                    wad
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            guy: string,
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([guy,
-    wad
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            guy: string,
-            wad: BigNumber,
-        ): string {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([guy,
-    wad
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            guy: string,
-            wad: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'approve(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([guy,
-        wad
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public totalSupply = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'totalSupply()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferFrom = {
-        async sendTransactionAsync(
-            src: string,
-            dst: string,
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([src,
-    dst,
-    wad
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferFrom.estimateGasAsync.bind(
-                    self,
-                    src,
-                    dst,
-                    wad
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            src: string,
-            dst: string,
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([src,
-    dst,
-    wad
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            src: string,
-            dst: string,
-            wad: BigNumber,
-        ): string {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([src,
-    dst,
-    wad
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            src: string,
-            dst: string,
-            wad: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'transferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([src,
-        dst,
-        wad
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public withdraw = {
-        async sendTransactionAsync(
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('withdraw(uint256)');
-            const encodedData = abiEncoder.encode([wad
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.withdraw.estimateGasAsync.bind(
-                    self,
-                    wad
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('withdraw(uint256)');
-            const encodedData = abiEncoder.encode([wad
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            wad: BigNumber,
-        ): string {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('withdraw(uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([wad
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            wad: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'withdraw(uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([wad
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public decimals = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<number
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'decimals()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public balanceOf = {
-        async callAsync(
-            index_0: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'balanceOf(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public symbol = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'symbol()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transfer = {
-        async sendTransactionAsync(
-            dst: string,
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([dst,
-    wad
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transfer.estimateGasAsync.bind(
-                    self,
-                    dst,
-                    wad
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            dst: string,
-            wad: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([dst,
-    wad
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            dst: string,
-            wad: BigNumber,
-        ): string {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([dst,
-    wad
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            dst: string,
-            wad: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'transfer(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([dst,
-        wad
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public deposit = {
-        async sendTransactionAsync(
-            txData: Partial<TxDataPayable> = {},
-        ): Promise<string> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('deposit()');
-            const encodedData = abiEncoder.encode([], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.deposit.estimateGasAsync.bind(
-                    self,
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('deposit()');
-            const encodedData = abiEncoder.encode([]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-        ): string {
-            const self = this as any as WETH9Contract;
-            const abiEncoder = self._lookupAbiEncoder('deposit()');
-            const abiEncodedTransactionData = abiEncoder.encode([]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<void
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'deposit()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray;
-        },
-    };
-    public allowance = {
-        async callAsync(
-            index_0: string,
-            index_1: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as WETH9Contract;
-            const functionSignature = 'allowance(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([index_0,
-        index_1
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<WETH9Contract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return WETH9Contract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<WETH9Contract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`WETH9 successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new WETH9Contract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('WETH9', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/zrx_token.ts b/packages/abi-gen-wrappers/src/generated-wrappers/zrx_token.ts
deleted file mode 100644
index afa80f368..000000000
--- a/packages/abi-gen-wrappers/src/generated-wrappers/zrx_token.ts
+++ /dev/null
@@ -1,502 +0,0 @@
-// tslint:disable:no-consecutive-blank-lines ordered-imports align trailing-comma whitespace class-name
-// tslint:disable:no-unused-variable
-// tslint:disable:no-unbound-method
-import { BaseContract } from '@0x/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, ContractArtifact, DecodedLogArgs, MethodAbi, Provider, TxData, TxDataPayable } from 'ethereum-types';
-import { BigNumber, classUtils, logUtils } from '@0x/utils';
-import { SimpleContractArtifact } from '@0x/types';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-import * as ethers from 'ethers';
-import * as _ from 'lodash';
-// tslint:enable:no-unused-variable
-
-export type ZRXTokenEventArgs =
-    | ZRXTokenTransferEventArgs
-    | ZRXTokenApprovalEventArgs;
-
-export enum ZRXTokenEvents {
-    Transfer = 'Transfer',
-    Approval = 'Approval',
-}
-
-export interface ZRXTokenTransferEventArgs extends DecodedLogArgs {
-    _from: string;
-    _to: string;
-    _value: BigNumber;
-}
-
-export interface ZRXTokenApprovalEventArgs extends DecodedLogArgs {
-    _owner: string;
-    _spender: string;
-    _value: BigNumber;
-}
-
-
-/* istanbul ignore next */
-// tslint:disable:no-parameter-reassignment
-// tslint:disable-next-line:class-name
-export class ZRXTokenContract extends BaseContract {
-    public name = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'name()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public approve = {
-        async sendTransactionAsync(
-            _spender: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_spender,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.approve.estimateGasAsync.bind(
-                    self,
-                    _spender,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _spender: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const encodedData = abiEncoder.encode([_spender,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _spender: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('approve(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_spender,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _spender: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'approve(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_spender,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public totalSupply = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'totalSupply()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transferFrom = {
-        async sendTransactionAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transferFrom.estimateGasAsync.bind(
-                    self,
-                    _from,
-                    _to,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const encodedData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transferFrom(address,address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_from,
-    _to,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _from: string,
-            _to: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'transferFrom(address,address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_from,
-        _to,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public decimals = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<number
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'decimals()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public balanceOf = {
-        async callAsync(
-            _owner: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'balanceOf(address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public symbol = {
-        async callAsync(
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<string
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'symbol()';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public transfer = {
-        async sendTransactionAsync(
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<string> {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _value
-    ], {optimize: false});
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-                self.transfer.estimateGasAsync.bind(
-                    self,
-                    _to,
-                    _value
-                ),
-            );
-            const txHash = await self._web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-            return txHash;
-        },
-        async estimateGasAsync(
-            _to: string,
-            _value: BigNumber,
-            txData: Partial<TxData> = {},
-        ): Promise<number> {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const encodedData = abiEncoder.encode([_to,
-    _value
-    ]);
-            const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...txData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const gas = await self._web3Wrapper.estimateGasAsync(txDataWithDefaults);
-            return gas;
-        },
-        getABIEncodedTransactionData(
-            _to: string,
-            _value: BigNumber,
-        ): string {
-            const self = this as any as ZRXTokenContract;
-            const abiEncoder = self._lookupAbiEncoder('transfer(address,uint256)');
-            const abiEncodedTransactionData = abiEncoder.encode([_to,
-    _value
-    ]);
-            return abiEncodedTransactionData;
-        },
-        async callAsync(
-            _to: string,
-            _value: BigNumber,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<boolean
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'transfer(address,uint256)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_to,
-        _value
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public allowance = {
-        async callAsync(
-            _owner: string,
-            _spender: string,
-            callData: Partial<CallData> = {},
-            defaultBlock?: BlockParam,
-        ): Promise<BigNumber
-        > {
-            const self = this as any as ZRXTokenContract;
-            const functionSignature = 'allowance(address,address)';
-            const abiEncoder = self._lookupAbiEncoder(functionSignature);
-            const encodedData = abiEncoder.encode([_owner,
-        _spender
-        ]);
-            const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-                {
-                    to: self.address,
-                    ...callData,
-                    data: encodedData,
-                },
-                self._web3Wrapper.getContractDefaults(),
-            );
-            const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-            BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
-            let resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
-        },
-    };
-    public static async deployFrom0xArtifactAsync(
-        artifact: ContractArtifact | SimpleContractArtifact,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ZRXTokenContract> {
-        if (_.isUndefined(artifact.compilerOutput)) {
-            throw new Error('Compiler output not found in the artifact file');
-        }
-        const bytecode = artifact.compilerOutput.evm.bytecode.object;
-        const abi = artifact.compilerOutput.abi;
-        return ZRXTokenContract.deployAsync(bytecode, abi, provider, txDefaults, );
-    }
-    public static async deployAsync(
-        bytecode: string,
-        abi: ContractAbi,
-        provider: Provider,
-        txDefaults: Partial<TxData>,
-    ): Promise<ZRXTokenContract> {
-        const constructorAbi = BaseContract._lookupConstructorAbi(abi);
-        [] = BaseContract._formatABIDataItemList(
-            constructorAbi.inputs,
-            [],
-            BaseContract._bigNumberToString,
-        );
-        const iface = new ethers.utils.Interface(abi);
-        const deployInfo = iface.deployFunction;
-        const txData = deployInfo.encode(bytecode, []);
-        const web3Wrapper = new Web3Wrapper(provider);
-        const txDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
-            {data: txData},
-            txDefaults,
-            web3Wrapper.estimateGasAsync.bind(web3Wrapper),
-        );
-        const txHash = await web3Wrapper.sendTransactionAsync(txDataWithDefaults);
-        logUtils.log(`transactionHash: ${txHash}`);
-        const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
-        logUtils.log(`ZRXToken successfully deployed at ${txReceipt.contractAddress}`);
-        const contractInstance = new ZRXTokenContract(abi, txReceipt.contractAddress as string, provider, txDefaults);
-        contractInstance.constructorArgs = [];
-        return contractInstance;
-    }
-    constructor(abi: ContractAbi, address: string, provider: Provider, txDefaults?: Partial<TxData>) {
-        super('ZRXToken', abi, address, provider, txDefaults);
-        classUtils.bindAll(this, ['_abiEncoderByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
-    }
-} // tslint:disable:max-file-line-count
-// tslint:enable:no-unbound-method
diff --git a/packages/base-contract/src/index.ts b/packages/base-contract/src/index.ts
index 2fd50b941..aeb90e6f7 100644
--- a/packages/base-contract/src/index.ts
+++ b/packages/base-contract/src/index.ts
@@ -91,10 +91,7 @@ export class BaseContract {
     }
     protected static _throwIfRevertWithReasonCallResult(rawCallResult: string): void {
         if (rawCallResult.slice(REVERT_ERROR_SELECTOR_OFFSET, REVERT_ERROR_SELECTOR_END) === REVERT_ERROR_SELECTOR) {
-            const revertReason = ethers.utils.defaultAbiCoder.decode(
-                ['string'],
-                ethers.utils.hexDataSlice(rawCallResult, REVERT_ERROR_SELECTOR_BYTES_LENGTH),
-            );
+            const revertReason = AbiEncoder.create('(string)').decode(ethers.utils.hexDataSlice(rawCallResult, REVERT_ERROR_SELECTOR_BYTES_LENGTH));
             throw new Error(revertReason);
         }
     }
@@ -140,6 +137,28 @@ export class BaseContract {
         }) as MethodAbi;
         return methodAbi;
     }
+    protected _strictEncodeArguments(functionSignature: string, functionArguments: any): string {
+        const abiEncoder = this._lookupAbiEncoder(functionSignature);
+        const inputAbi = abiEncoder.getDataItem().components;
+        if (inputAbi === undefined) {
+            throw new Error(`Undefined Method Input ABI`);
+        }
+        const params = abiUtils.parseEthersParams(inputAbi);
+        const rawEncoded = abiEncoder.encode(functionArguments);
+        const rawDecoded = abiEncoder.decodeAsArray(rawEncoded);
+        for (let i = 0; i < rawDecoded.length; i++) {
+            const original = functionArguments[i];
+            const decoded = rawDecoded[i];
+            if (!abiUtils.isAbiDataEqual(params.names[i], params.types[i], original, decoded)) {
+                throw new Error(
+                    `Cannot safely encode argument: ${params.names[i]} (${original}) of type ${
+                        params.types[i]
+                    }. (Possible type overflow or other encoding error)`,
+                );
+            }
+        }
+        return rawEncoded;
+    }
     constructor(
         contractName: string,
         abi: ContractAbi,
diff --git a/packages/utils/src/abi_encoder/abstract_data_types/types/blob.ts b/packages/utils/src/abi_encoder/abstract_data_types/types/blob.ts
index a091e55b9..4252b782c 100644
--- a/packages/utils/src/abi_encoder/abstract_data_types/types/blob.ts
+++ b/packages/utils/src/abi_encoder/abstract_data_types/types/blob.ts
@@ -9,6 +9,8 @@ import { DecodingRules } from '../../utils/rules';
 import { DataType } from '../data_type';
 import { DataTypeFactory } from '../interfaces';
 
+import * as ethUtil from 'ethereumjs-util';
+
 export abstract class AbstractBlobDataType extends DataType {
     protected _sizeKnownAtCompileTime: boolean;
 
diff --git a/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts b/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts
index d7105ff5f..5eb29c47b 100644
--- a/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts
+++ b/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts
@@ -13,6 +13,7 @@ import { DataType } from '../data_type';
 import { DataTypeFactory, MemberIndexByName } from '../interfaces';
 
 import { AbstractPointerDataType } from './pointer';
+import { logUtils } from '../../../log_utils';
 
 export abstract class AbstractSetDataType extends DataType {
     protected readonly _arrayLength: number | undefined;
@@ -134,22 +135,16 @@ export abstract class AbstractSetDataType extends DataType {
         const block = new SetCalldataBlock(this.getDataItem().name, this.getSignature(), parentName);
         // Create blocks for members of set.
         const memberCalldataBlocks: CalldataBlock[] = [];
-        let duplicateObj = _.cloneDeep(obj) as {[key:string]: any};
         _.forEach(this._memberIndexByName, (memberIndex: number, memberName: string) => {
             if (!(memberName in obj)) {
                 throw new Error(
                     `Could not assign tuple to object: missing key '${memberName}' in object ${JSON.stringify(obj)}`,
                 );
             }
-            const memberValue: any = duplicateObj[memberName];
+            const memberValue: any = (obj as {[key:string]: any})[memberName];
             const memberBlock = this._members[memberIndex].generateCalldataBlock(memberValue, block);
             memberCalldataBlocks.push(memberBlock);
-            delete duplicateObj[memberName];
         });
-        // Sanity check that all members have been included.
-        if (Object.keys(duplicateObj).length !== 0) {
-            throw new Error(`Could not assign tuple to object: unrecognized keys ${Object.keys(duplicateObj)}`);
-        }
         // Associate member blocks with Set block.
         block.setMembers(memberCalldataBlocks);
         return block;
diff --git a/packages/utils/src/abi_encoder/evm_data_types/method.ts b/packages/utils/src/abi_encoder/evm_data_types/method.ts
index 44456cd0a..212e2ca6b 100644
--- a/packages/utils/src/abi_encoder/evm_data_types/method.ts
+++ b/packages/utils/src/abi_encoder/evm_data_types/method.ts
@@ -35,6 +35,12 @@ export class MethodDataType extends AbstractSetDataType {
         return value;
     }
 
+    public decodeAsArray(returndata: string, rules?: DecodingRules): any {
+        const value = this.decode(returndata, rules);
+        const valuesAsArray = _.isObject(value) ? _.values(value) : [value];
+        return valuesAsArray;
+    }
+
     public encodeReturnValues(value: any, rules?: EncodingRules): string {
         const returnData = this._returnDataType.encode(value, rules);
         return returnData;
diff --git a/packages/utils/test/abi_encoder/evm_data_types_test.ts b/packages/utils/test/abi_encoder/evm_data_types_test.ts
index 919b71c55..3c7bafc0a 100644
--- a/packages/utils/test/abi_encoder/evm_data_types_test.ts
+++ b/packages/utils/test/abi_encoder/evm_data_types_test.ts
@@ -407,21 +407,6 @@ describe('ABI Encoder: EVM Data Type Encoding/Decoding', () => {
                 dataType.encode(args, encodingRules);
             }).to.throw('Could not assign tuple to object: missing key \'field_2\' in object {"field_1":"-5"}');
         });
-        it('Bad Key', async () => {
-            // Create DataType object
-            const testDataItem = {
-                name: 'Tuple',
-                type: 'tuple',
-                components: [{name: 'field_1', type: 'bool' }],
-            };
-            const dataType = new AbiEncoder.Tuple(testDataItem);
-            // Construct args to be encoded
-            const args = { field_1: true, unknown_field: new BigNumber(-5) };
-            // Encode Args and validate result
-            expect(() => {
-                dataType.encode(args, encodingRules);
-            }).to.throw("Could not assign tuple to object: unrecognized keys unknown_field");
-        });
     });
 
     describe('Address', () => {