import { ethers } from 'ethers';
import { Token, TokenList } from './types';
export declare const isAddress: (maybeAddress: string) => boolean;
export declare const formatUnits: (units: ethers.BigNumberish, symbolOrAddress: string, tokenList: TokenList, chainId: number) => Promise<string>;
export declare const parseUnits: (units: string, symbolOrAddress: string, tokenList: TokenList, chainId: number) => Promise<ethers.BigNumber>;
export declare const getTokenFromSymbolOrAddress: (symbolOrAddress: string, tokenList: TokenList, chainId: number) => Promise<Token | undefined>;
export declare const getChainIdFromProvider: (provider: ethers.providers.Provider) => Promise<number>;
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