/**
 * Encodes keys and parameters for use in a URL's query string.
 *
 * @param key Parameter's key
 * @param value Parameter's value
 * @returns Query string with key and value pairs separated by "&"
 */
export declare function encodeParam(key: string, value: any): string;
/**
 * Encodes the passed object as a query string.
 *
 * @param params An object to be encoded.
 * @returns An encoded query string.
 */
export declare function encodeQueryString(params: any): string;