/** This code has been extracted from the @wordpress/url package */
export declare function getQueryString(url: string): any;
/**
 * Returns an object of query arguments of the given URL. If the given URL is
 * invalid or has no querystring, an empty object is returned.
 *
 * @param {string} url URL.
 *
 * @example
 * ```js
 * const foo = getQueryArgs( 'https://wordpress.org?foo=bar&bar=baz' );
 * // { "foo": "bar", "bar": "baz" }
 * ```
 *
 * @returns Query args object.
 */
export declare function getQueryArgs(url: string): Record<string, any>;
/**
 * Generates URL-encoded query string using input query data.
 *
 * It is intended to behave equivalent as PHP's `http_build_query`, configured
 * with encoding type PHP_QUERY_RFC3986 (spaces as `%20`).
 *
 * @example
 * ```js
 * const queryString = buildQueryString( {
 *    simple: 'is ok',
 *    arrays: [ 'are', 'fine', 'too' ],
 *    objects: {
 *       evenNested: {
 *          ok: 'yes',
 *       },
 *    },
 * } );
 * // "simple=is%20ok&arrays%5B0%5D=are&arrays%5B1%5D=fine&arrays%5B2%5D=too&objects%5BevenNested%5D%5Bok%5D=yes"
 * ```
 *
 * @param {Record<string,*>} data Data to encode.
 *
 * @returns {string} Query string.
 */
export declare function buildQueryString(data: Record<string, any>): string;
export declare function addQueryArgs(url: string, args: Record<string, any>): string;