/// <reference types="node" />
import BigNumber from 'bignumber.js';
export declare function kinToQuarks(amount: string): BigNumber;
export declare function quarksToKin(amount: BigNumber | string): string;
export declare function elipsify(str?: string, len?: number): string;
export declare function sleep(seconds?: number): Promise<unknown>;
export declare function bs58decode(string: string): Buffer | undefined;
export declare function bs58encode(buffer: Buffer | number[] | Uint8Array): string;