code: function (method, url, options) {
      if (! options.headers) { options.headers = {}; }
      options.headers['Authorization'] = 'Bearer ' + this.token;
  
      this.rs._emit('wire-busy', {
        method: method,
        isFolder: isFolder(url)
      });
  
      return WireClient.request.call(this, method, url, options).then((xhr) => {
        // Google tokens expire from time to time...
        if (xhr && xhr.status === 401) {
          this.connect();
          return;
        } else {
          if (!this.online) {
            this.online = true;
            this.rs._emit('network-online');
          }
          this.rs._emit('wire-done', {
            method: method,
            isFolder: isFolder(url),
            success: true
          });
  
          return Promise.resolve(xhr);
        }
      }, (error) => {
        if (this.online) {
          this.online = false;
          this.rs._emit('network-offline');
        }
        this.rs._emit('wire-done', {
          method: method,
          isFolder: isFolder(url),
          success: false
        });
  
        return Promise.reject(error);
      });
    }
docs: Make a network request.
  
  @param {string} method - Request method
  @param {string} url - Target URL
  @param {Object} options - Request options
  @returns {Promise} Resolves with the response of the network request
  
  @private