/**
 *  It takes a URL, a method, and a body, and returns a promise that resolves to a JSON object
 */
export declare class ApiUtil {
  /**
   * It returns a promise that resolves to a JSON object of type T
   *
   * @typedef T generic type
   * @param {string} url - The url to make the request to.
   * @param {HeadersInit} headers - HeadersInit
   * @returns {Promise<T>}A promise of type T
   */
  static get<T>(url: string, headers?: HeadersInit): Promise<T>;
  /**
   * It takes a URL, a method, some headers, and some data, and returns a promise that resolves to the
   * response in JSON format
   *
   * @typedef T generic type
   * @param {string} url - The URL to make the request to.
   * @param {unknown} data - The data to send to the server.
   * @param {HeadersInit} headers - HeadersInit
   * @returns {Promise<T>} A promise that resolves to the response in JSON format.
   */
  static post<T>(url: string, data: unknown, headers?: HeadersInit): Promise<T>;
  /**
   * It takes a URL, a method, a set of headers, and an optional body, and returns a promise that
   * resolves to a JSON object
   *
   * @typedef T generic type
   * @param {string} url - The URL to send the request to.
   * @param {string} method - The HTTP method to use.
   * @param {HeadersInit} headers - HeadersInit - This is the headers that will be sent with the
   * request.
   * @param {string} [body] - The body of the request.
   * @returns {Promise<T>} A promise that resolves to a JSON object.
   */
  private static getResponseInJSON;
}