import { ethers } from 'ethers';
export declare const MAX_UINT_256: bigint;
export declare const isBigNumberish: (value: any) => value is ethers.BigNumberish;
export declare const toHexString: (value: bigint) => string;
export declare const parseUnits: (value: string, decimals?: number) => bigint;
export declare const parseEther: (value: string) => bigint;
export declare const formatUnits: (value: bigint, decimals?: number) => string;
export declare const formatEther: (value: bigint) => string;
export declare const bigintReplacer: (key: string, value: any) => any;
export declare const bigintReviver: (key: string, value: any) => any;