fix imports

src/entities/route.test.ts

-import { Token, WETH9, CurrencyAmount } from '@uniswap/sdk-core'
-import { Ether } from '../../../../sdk-core'
+import { Ether, Token, WETH9, CurrencyAmount } from '@uniswap/sdk-core'
 import { Pair, Route } from './index'
 
 describe('Route', () => {

src/entities/trade.test.ts

-import { Ether } from '../../../../sdk-core'
 import { Pair } from './pair'
 import { Route } from './route'
 import { Trade } from './trade'
 import JSBI from 'jsbi'
-import { CurrencyAmount, Percent, Token, TradeType, WETH9, Price } from '@uniswap/sdk-core'
+import { Ether, CurrencyAmount, Percent, Token, TradeType, WETH9, Price } from '@uniswap/sdk-core'
 
 describe('Trade', () => {
   const ETHER = Ether.onChain(1)

src/entities/trade.ts

-import { Currency, CurrencyAmount, Fraction, Percent, Price, sortedInsert, TradeType } from '@uniswap/sdk-core'
-import { computePriceImpact, Token } from '../../../../sdk-core'
+import {
+  computePriceImpact,
+  Token,
+  Currency,
+  CurrencyAmount,
+  Fraction,
+  Percent,
+  Price,
+  sortedInsert,
+  TradeType
+} from '@uniswap/sdk-core'
 import { ONE, ZERO } from '../constants'
 import invariant from 'tiny-invariant'
 

src/router.test.ts

 import JSBI from 'jsbi'
-import { Ether } from '../../../sdk-core'
 import { Pair, Route, Trade } from './entities'
 import { Router } from './router'
 import invariant from 'tiny-invariant'
-import { CurrencyAmount, Percent, Token, WETH9 } from '@uniswap/sdk-core'
+import { CurrencyAmount, Percent, Ether, Token, WETH9 } from '@uniswap/sdk-core'
 
 function checkDeadline(deadline: string[] | string): void {
   expect(typeof deadline).toBe('string')

src/router.ts

-import { Currency, CurrencyAmount, Percent, TradeType, validateAndParseAddress } from '@uniswap/sdk-core'
+import { Token, Currency, CurrencyAmount, Percent, TradeType, validateAndParseAddress } from '@uniswap/sdk-core'
 import { Trade } from 'entities'
 import invariant from 'tiny-invariant'
-import { Token } from '../../../sdk-core'
 
 /**
  * Options for producing the arguments to send call to the router.