4 files changed, 8 insertions, 4 deletions
diff --git a/packages/order-utils/CHANGELOG.json b/packages/order-utils/CHANGELOG.json
index 5a0c0db47..9bf16ef2a 100644
--- a/packages/order-utils/CHANGELOG.json
+++ b/packages/order-utils/CHANGELOG.json
@@ -14,6 +14,10 @@
             {
                 "note": "Rename `ecSignOrderHashAsync` to `ecSignHashAsync` removing `SignerType` parameter.",
                 "pr": 1102
+            },
+            {
+                "note": "Use `AssetData` union type for function return values.",
+                "pr": 1131
             }
         ]
     },
diff --git a/packages/order-utils/package.json b/packages/order-utils/package.json
index 50bc0f0a0..09eef849f 100644
--- a/packages/order-utils/package.json
+++ b/packages/order-utils/package.json
@@ -49,7 +49,7 @@
         "shx": "^0.2.2",
         "sinon": "^4.0.0",
         "tslint": "5.11.0",
-        "typedoc": "0.12.0",
+        "typedoc": "0.13.0",
         "typescript": "3.0.1"
     },
     "dependencies": {
diff --git a/packages/order-utils/src/asset_data_utils.ts b/packages/order-utils/src/asset_data_utils.ts
index 0c0b59548..12c11bce9 100644
--- a/packages/order-utils/src/asset_data_utils.ts
+++ b/packages/order-utils/src/asset_data_utils.ts
@@ -1,4 +1,4 @@
-import { AssetProxyId, ERC20AssetData, ERC721AssetData } from '@0xproject/types';
+import { AssetData, AssetProxyId, ERC20AssetData, ERC721AssetData } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import ethAbi = require('ethereumjs-abi');
 import ethUtil = require('ethereumjs-util');
@@ -112,7 +112,7 @@ export const assetDataUtils = {
      * @param assetData Hex encoded assetData string to decode
      * @return Either a ERC20 or ERC721 assetData object
      */
-    decodeAssetDataOrThrow(assetData: string): ERC20AssetData | ERC721AssetData {
+    decodeAssetDataOrThrow(assetData: string): AssetData {
         const assetProxyId = assetDataUtils.decodeAssetProxyId(assetData);
         switch (assetProxyId) {
             case AssetProxyId.ERC20:
diff --git a/packages/order-utils/src/index.ts b/packages/order-utils/src/index.ts
index dbb782b85..50b8a88a8 100644
--- a/packages/order-utils/src/index.ts
+++ b/packages/order-utils/src/index.ts
@@ -18,7 +18,6 @@ export { ExchangeTransferSimulator } from './exchange_transfer_simulator';
 export { BalanceAndProxyAllowanceLazyStore } from './store/balance_and_proxy_allowance_lazy_store';
 export { OrderFilledCancelledLazyStore } from './store/order_filled_cancelled_lazy_store';
 
-export { constants } from './constants';
 export { eip712Utils } from './eip712_utils';
 
 export {
@@ -35,6 +34,7 @@ export {
     OrderRelevantState,
     OrderState,
     ECSignature,
+    AssetData,
     ERC20AssetData,
     ERC721AssetData,
     AssetProxyId,