/**
 * Escapes a string so it can be safely used for querying the api.
 * @param  {string} s The string to escape.
 * @return {string}   An escaped string.
 */
export declare function escapeQueryString(s: string): string;
/**
 * Unescapes a string so it can be used for processing the response of the api.
 * @param  {string} s The string to unescape.
 * @return {string}   An unescaped string.
 */
export declare function unescapeQueryString(s: string): string;