/**
 * なにかを文字列化する(bigint supported JSON.stringify)
 * String something (bigint supported JSON.stringify)
 *
 * @example
 * ```ts
 * // print: {"name":"haruhi","num":"8"}
 * stringify({ name: 'haruhi', num: BigInt(8) })
 * ```
 * @param obj 文字列化する値 <br /> value to stringify
 * @param replacer 置換関数 or 許可するキー名の配列 <br /> replace function or array of allowed key names
 * @param space JSON.stringifyのspace <br /> space of JSON.stringify
 * @returns
 */
export declare function stringify(obj: any, replacer?: (string | number)[] | null | undefined, space?: string | number | undefined): string;
export declare function stringify(obj: any, replacer?: ((key: string, value: any) => any) | undefined, space?: string | number | undefined): string;