code: function(params) {
                  var accessToken = params.accessToken ? params.accessToken : this.driver.config
                      .get(corbel.Iam.IAM_TOKEN, {}).accessToken;
  
                  if (accessToken && !params.headers.Authorization) {
                      params.headers.Authorization = 'Bearer ' + accessToken;
                      params.withCredentials = true;
                  } else if (params.headers.Authorization) {
                      params.withCredentials = true;
                  }
  
                  return params;
              }
docs: Add Authorization header with default tokenObject
  @param {object} params request builded params