/**
 *
 * @param {string | null | number} string
 * @param {(this: any, key: string, value: any) => any} [reviver]
 * @returns {Object<string, any> | Object<string, any>[] | undefined}
 */
export function parse(string: string | null | number, reviver?: (this: any, key: string, value: any) => any): {
    [x: string]: any;
} | {
    [x: string]: any;
}[] | undefined;
/**
 *
 * @param {any} value
 * @param {((this: any, key: string, value: any) => any) | null} [replacer]
 * @param { string | number } [space]
 * @returns {string | undefined}
 */
export function stringify(value: any, replacer?: ((this: any, key: string, value: any) => any) | null, space?: string | number): string | undefined;