import type { Formatter, ReversibleFormatter } from "./common.js";
/**
 * A formatter that returns the input value unchanged.
 * This is useful for scenarios where no transformation is needed.
 */
export default class Identity implements Formatter<unknown>, ReversibleFormatter<unknown, unknown> {
    /**
     * Singleton instance for reuse.
     */
    static readonly instance: Identity;
    /**
     * Returns the input value without modification.
     * @template T - The type of the input value.
     * @param {T} value - The value to format.
     * @returns {T} The same input value.
     */
    format<T>(value: T): T;
    /**
     * Returns the input value without modification.
     * @template T - The type of the input value.
     * @param {T} value - The value to unformat.
     * @returns {T} The same input value.
     */
    unformat<T>(value: T): T;
}