export declare function bigintToBase56(value: bigint): string;
export declare function bigintFromBase56(str: string): bigint;
export declare function bigintToBase64(value: bigint): string;
export declare function bigintFromBase64(str: string): bigint;
export declare function fromBase(digits: bigint[], base: bigint): bigint;
export declare function toBase(x: bigint, base: bigint): bigint[];