Auto-fix linter errors

6 files changed, 70 insertions, 59 deletions

diff --git a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
index 93912c3d9..2b99cfe4c 100644
--- a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
@@ -1,24 +1,25 @@
+import {Block, BlockAndLogStreamer} from 'ethereumjs-blockstream';
 import * as _ from 'lodash';
 import * as Web3 from 'web3';
-import {BlockAndLogStreamer, Block} from 'ethereumjs-blockstream';
-import {Web3Wrapper} from '../web3_wrapper';
-import {AbiDecoder} from '../utils/abi_decoder';
+
 import {
-    ZeroExError,
-    InternalZeroExError,
     Artifact,
+    BlockParamLiteral,
+    ContractEventArgs,
+    ContractEvents,
+    EventCallback,
+    IndexedFilterValues,
+    InternalZeroExError,
     LogWithDecodedArgs,
     RawLog,
-    ContractEvents,
     SubscriptionOpts,
-    IndexedFilterValues,
-    EventCallback,
-    BlockParamLiteral,
-    ContractEventArgs,
+    ZeroExError,
 } from '../types';
+import {AbiDecoder} from '../utils/abi_decoder';
 import {constants} from '../utils/constants';
-import {intervalUtils} from '../utils/interval_utils';
 import {filterUtils} from '../utils/filter_utils';
+import {intervalUtils} from '../utils/interval_utils';
+import {Web3Wrapper} from '../web3_wrapper';
 
 export class ContractWrapper {
     protected _web3Wrapper: Web3Wrapper;
diff --git a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
index 9867e9a23..0ac21cb78 100644
--- a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
@@ -1,11 +1,13 @@
-import * as _ from 'lodash';
 import BigNumber from 'bignumber.js';
+import * as _ from 'lodash';
+
+import {artifacts} from '../artifacts';
+import {EtherTokenContract, ZeroExError} from '../types';
+import {assert} from '../utils/assert';
 import {Web3Wrapper} from '../web3_wrapper';
+
 import {ContractWrapper} from './contract_wrapper';
 import {TokenWrapper} from './token_wrapper';
-import {EtherTokenContract, ZeroExError} from '../types';
-import {assert} from '../utils/assert';
-import {artifacts} from '../artifacts';
 
 /**
  * This class includes all the functionality related to interacting with a wrapped Ether ERC20 token contract.
@@ -89,7 +91,7 @@ export class EtherTokenWrapper extends ContractWrapper {
         const contractInstance = await this._instantiateContractIfExistsAsync<EtherTokenContract>(
             artifacts.EtherTokenArtifact, this._contractAddressIfExists,
         );
-        this._etherTokenContractIfExists = contractInstance as EtherTokenContract;
+        this._etherTokenContractIfExists = contractInstance;
         return this._etherTokenContractIfExists;
     }
 }
diff --git a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
index 604c53e3a..97ea54362 100644
--- a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
@@ -1,44 +1,46 @@
+import {schemas} from '@0xproject/json-schemas';
+import BigNumber from 'bignumber.js';
 import * as _ from 'lodash';
 import * as Web3 from 'web3';
-import BigNumber from 'bignumber.js';
-import {schemas} from '@0xproject/json-schemas';
-import {Web3Wrapper} from '../web3_wrapper';
+
+import {artifacts} from '../artifacts';
 import {
+    DecodedLogArgs,
     ECSignature,
+    EventCallback,
     ExchangeContract,
     ExchangeContractErrCodes,
     ExchangeContractErrs,
-    ZeroExError,
-    OrderValues,
-    OrderAddresses,
-    Order,
-    SignedOrder,
+    ExchangeContractEventArgs,
     ExchangeEvents,
-    SubscriptionOpts,
     IndexedFilterValues,
-    OrderCancellationRequest,
-    OrderFillRequest,
+    LogCancelContractEventArgs,
     LogErrorContractEventArgs,
     LogFillContractEventArgs,
-    LogCancelContractEventArgs,
     LogWithDecodedArgs,
     MethodOpts,
-    ValidateOrderFillableOpts,
+    Order,
+    OrderAddresses,
+    OrderCancellationRequest,
+    OrderFillRequest,
     OrderTransactionOpts,
+    OrderValues,
     RawLog,
-    EventCallback,
-    ExchangeContractEventArgs,
-    DecodedLogArgs,
+    SignedOrder,
+    SubscriptionOpts,
+    ValidateOrderFillableOpts,
+    ZeroExError,
 } from '../types';
+import {AbiDecoder} from '../utils/abi_decoder';
 import {assert} from '../utils/assert';
-import {utils} from '../utils/utils';
+import {decorators} from '../utils/decorators';
+import {ExchangeTransferSimulator} from '../utils/exchange_transfer_simulator';
 import {OrderValidationUtils} from '../utils/order_validation_utils';
+import {utils} from '../utils/utils';
+import {Web3Wrapper} from '../web3_wrapper';
+
 import {ContractWrapper} from './contract_wrapper';
 import {TokenWrapper} from './token_wrapper';
-import {decorators} from '../utils/decorators';
-import {AbiDecoder} from '../utils/abi_decoder';
-import {ExchangeTransferSimulator} from '../utils/exchange_transfer_simulator';
-import {artifacts} from '../artifacts';
 
 const SHOULD_VALIDATE_BY_DEFAULT = true;
 
@@ -873,7 +875,7 @@ export class ExchangeWrapper extends ContractWrapper {
         const contractInstance = await this._instantiateContractIfExistsAsync<ExchangeContract>(
             artifacts.ExchangeArtifact, this._contractAddressIfExists,
         );
-        this._exchangeContractIfExists = contractInstance as ExchangeContract;
+        this._exchangeContractIfExists = contractInstance;
         return this._exchangeContractIfExists;
     }
     private async _getTokenTransferProxyAddressAsync(): Promise<string> {
diff --git a/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts b/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts
index 50871d3f2..60fe7f33a 100644
--- a/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts
@@ -1,10 +1,12 @@
 import * as _ from 'lodash';
-import {Web3Wrapper} from '../web3_wrapper';
+
+import {artifacts} from '../artifacts';
+import {Token, TokenMetadata, TokenRegistryContract, ZeroExError} from '../types';
 import {assert} from '../utils/assert';
-import {Token, TokenRegistryContract, TokenMetadata, ZeroExError} from '../types';
 import {constants} from '../utils/constants';
+import {Web3Wrapper} from '../web3_wrapper';
+
 import {ContractWrapper} from './contract_wrapper';
-import {artifacts} from '../artifacts';
 
 /**
  * This class includes all the functionality related to interacting with the 0x Token Registry smart contract.
@@ -123,7 +125,7 @@ export class TokenRegistryWrapper extends ContractWrapper {
         const contractInstance = await this._instantiateContractIfExistsAsync<TokenRegistryContract>(
             artifacts.TokenRegistryArtifact, this._contractAddressIfExists,
         );
-        this._tokenRegistryContractIfExists = contractInstance as TokenRegistryContract;
+        this._tokenRegistryContractIfExists = contractInstance;
         return this._tokenRegistryContractIfExists;
     }
 }
diff --git a/packages/0x.js/src/contract_wrappers/token_transfer_proxy_wrapper.ts b/packages/0x.js/src/contract_wrappers/token_transfer_proxy_wrapper.ts
index 6970d5433..33adc0a9b 100644
--- a/packages/0x.js/src/contract_wrappers/token_transfer_proxy_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/token_transfer_proxy_wrapper.ts
@@ -1,8 +1,10 @@
 import * as _ from 'lodash';
-import {Web3Wrapper} from '../web3_wrapper';
-import {ContractWrapper} from './contract_wrapper';
+
 import {artifacts} from '../artifacts';
 import {TokenTransferProxyContract, ZeroExError} from '../types';
+import {Web3Wrapper} from '../web3_wrapper';
+
+import {ContractWrapper} from './contract_wrapper';
 
 /**
  * This class includes the functionality related to interacting with the TokenTransferProxy contract.
@@ -60,7 +62,7 @@ export class TokenTransferProxyWrapper extends ContractWrapper {
         const contractInstance = await this._instantiateContractIfExistsAsync<TokenTransferProxyContract>(
             artifacts.TokenTransferProxyArtifact, this._contractAddressIfExists,
         );
-        this._tokenTransferProxyContractIfExists = contractInstance as TokenTransferProxyContract;
+        this._tokenTransferProxyContractIfExists = contractInstance;
         return this._tokenTransferProxyContractIfExists;
     }
 }
diff --git a/packages/0x.js/src/contract_wrappers/token_wrapper.ts b/packages/0x.js/src/contract_wrappers/token_wrapper.ts
index 5fd3a2a5d..4b359d069 100644
--- a/packages/0x.js/src/contract_wrappers/token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/token_wrapper.ts
@@ -1,23 +1,25 @@
-import * as _ from 'lodash';
-import BigNumber from 'bignumber.js';
 import {schemas} from '@0xproject/json-schemas';
-import {Web3Wrapper} from '../web3_wrapper';
-import {assert} from '../utils/assert';
-import {constants} from '../utils/constants';
-import {ContractWrapper} from './contract_wrapper';
-import {AbiDecoder} from '../utils/abi_decoder';
+import BigNumber from 'bignumber.js';
+import * as _ from 'lodash';
+
 import {artifacts} from '../artifacts';
 import {
-    TokenContract,
-    ZeroExError,
-    TokenEvents,
+    EventCallback,
     IndexedFilterValues,
-    SubscriptionOpts,
-    MethodOpts,
     LogWithDecodedArgs,
-    EventCallback,
+    MethodOpts,
+    SubscriptionOpts,
+    TokenContract,
     TokenContractEventArgs,
+    TokenEvents,
+    ZeroExError,
 } from '../types';
+import {AbiDecoder} from '../utils/abi_decoder';
+import {assert} from '../utils/assert';
+import {constants} from '../utils/constants';
+import {Web3Wrapper} from '../web3_wrapper';
+
+import {ContractWrapper} from './contract_wrapper';
 
 const ALLOWANCE_TO_ZERO_GAS_AMOUNT = 47275;
 
@@ -302,7 +304,7 @@ export class TokenWrapper extends ContractWrapper {
         const contractInstance = await this._instantiateContractIfExistsAsync<TokenContract>(
             artifacts.TokenArtifact, tokenAddress,
         );
-        tokenContract = contractInstance as TokenContract;
+        tokenContract = contractInstance;
         this._tokenContractsByAddress[tokenAddress] = tokenContract;
         return tokenContract;
     }