code: function() {
                  console.log('borrowInterface.user.getAllLoans', this.id);
                  return this.request({
                      url: this._buildUri(this.uri, this.id, 'loan'),
                      method: corbel.request.method.GET
                  });
              }
docs: Get all loans of a user.
  
  @method
  @memberOf corbel.Borrow.UserBuilder
  
  @return {Promise} A promise with all user loans {Object} or fails with a {@link corbelError}.