/// <reference types="node" />
export declare function hasHexPrefix(str: string): boolean;
export declare function withoutHexPrefix(str: string): string;
export declare function isHex(str: string): boolean;
export declare function hexToBuffer(str: string): Buffer;
export declare function bufferToHex(buffer: Buffer): string;
export declare function pluralize(str: string, count: number | bigint, plural?: string): string;
export declare function count(count: number | bigint, str: string, plural?: string): string;
export declare function truncate(str: string, length?: number): string;
export declare function isoDate(date?: Date): string;
export declare function urlJoin(...args: string[]): string;