FIx linting errors

contracts/protocol/test/exchange/core.ts

@@ -1,4 +1,3 @@
-import { artifacts as interfacesArtifacts, IAssetDataContract } from '@0x/contracts-interfaces';
 import {
     chaiSetup,
     constants,

contracts/tokens/src/artifacts/index.ts

@@ -22,6 +22,7 @@ import * as UnlimitedAllowanceToken_v1 from '../../generated-artifacts/Unlimited
 import * as WETH9 from '../../generated-artifacts/WETH9.json';
 import * as ZRXToken from '../../generated-artifacts/ZRXToken.json';
 
+// tslint:disable:no-unnecessary-type-assertion
 export const artifacts = {
     DummyERC20Token: DummyERC20Token as ContractArtifact,
     DummyMultipleReturnERC20Token: DummyMultipleReturnERC20Token as ContractArtifact,

packages/pipeline/src/parsers/events/exchange_events.ts

@@ -7,6 +7,8 @@ import * as R from 'ramda';
 import { ExchangeCancelEvent, ExchangeCancelUpToEvent, ExchangeFillEvent } from '../../entities';
 import { bigNumbertoStringOrNull, convertAssetProxyIdToType } from '../../utils';
 
+// tslint:disable:no-unnecessary-type-assertion
+
 /**
  * Parses raw event logs for a fill event and returns an array of
  * ExchangeFillEvent entities.

packages/pipeline/src/parsers/sra_orders/index.ts

@@ -6,6 +6,8 @@ import * as R from 'ramda';
 import { SraOrder } from '../../entities';
 import { bigNumbertoStringOrNull, convertAssetProxyIdToType } from '../../utils';
 
+// tslint:disable:no-unnecessary-type-assertion
+
 /**
  * Parses a raw order response from an SRA endpoint and returns an array of
  * SraOrder entities.

packages/pipeline/src/utils/transformers/asset_proxy_id_types.ts

@@ -2,6 +2,10 @@ import { AssetProxyId } from '@0x/types';
 
 import { AssetType } from '../../types';
 
+/**
+ * Converts an assetProxyId to its string equivalent
+ * @param assetProxyId Id of AssetProxy
+ */
 export function convertAssetProxyIdToType(assetProxyId: AssetProxyId): AssetType {
     switch (assetProxyId) {
         case AssetProxyId.ERC20: