export declare class Json {
    private static absCall;
    /**
     * @static
     * @param {string} url - full path to POST to
     * @param {object} body - JSON object to post
     * @param {boolean} sendCookies - Whether or not to send the XMLHttpRequest with credentials or not
     * @param {number} [timeout] - optional timeout in milliseconds
     * @return {Promise<object>} - if the server responds the response will be returned here
     */
    static post(url: string, body: object, sendCookies?: boolean, timeout?: number): Promise<object>;
    /**
     * @static
     * @param {string} url - full path to the json
     * @param {boolean} sendCookies - Whether or not to send the XMLHttpRequest with credentials or not
     * @param {number} [timeout] - optional timeout in milliseconds
     * @return {Promise<object>} - resolves with parsed JSON
     */
    static fetch(url: string, sendCookies?: boolean, timeout?: number): Promise<object>;
}