import { BigNumber, BigNumberish, BytesLike, ethers } from 'ethers';
export declare const median: (arr: number[]) => number;
export declare const mean: (arr: number[]) => number;
export declare const max: (arr: number[]) => number;
export declare const min: (arr: number[]) => number;
/** Generate random number of specified byte length */
export declare const randomBN: (nbytes?: number) => BigNumber;
export declare const randomFieldElement: (nbytes?: number) => Uint8Array;
export declare const toHex: (covertThis: ethers.utils.BytesLike | number | bigint, padding: number) => string;
/** BigNumber to hex string of specified length */
export declare function toFixedHex(number: BigNumberish, length?: number): string;
/** Pad the bigint to 256 bits (32 bytes) */
export declare function p256(n: bigint): string;
/** Convert value into buffer of specified byte length */
export declare const toBuffer: (value: BigNumberish, length: number) => Buffer;
/**
 * Computes the updated chain ID with chain type.
 * @param chainID Chain ID to encode into augmented chain ID Type, defaults to hardhat's chain ID.
 * @returns
 */
export declare const getChainIdType: (chainID?: number) => number;
export declare const signMessage: (wallet: ethers.Wallet, data: BytesLike) => any;