export function getJSON(url: string): Promise<Record<string, any>> {
  return new Promise<Record<string, any>>((resolve, reject) => {
    var xhr = new XMLHttpRequest();
    xhr.open("GET", url, true);
    xhr.responseType = "json";
    xhr.onload = function () {
      var status = xhr.status;
      if (status === 200) {
        resolve(xhr.response);
      } else {
        reject(xhr.response);
      }
    };
    xhr.send();
  });
}