import type { Formatter, ReversibleFormatter } from "./common.js";
/**
 * A formatter that converts values to and from JSON strings. Useful for serializing/deserializing data structures.
 */
export default class Json implements Formatter<string>, ReversibleFormatter<string, unknown> {
    private readonly settings?;
    constructor(settings?: {
        space: string | number;
    });
    /**
     * Converts a value to a JSON string using default serialization.
     * @template T - The type of the input value.
     * @param {T} value - The value to serialize.
     * @returns {string} JSON string representation of the value.
     */
    format<T>(value: T): string;
    /**
     * Parses a JSON string into its original data structure.
     * @param {string} value - The JSON string to deserialize.
     * @returns {T} The parsed object/array value.
     */
    unformat<T>(value: string): T;
}