code: def ng_get_ctrl_property(self, element, prop):
          
          return self.browser.execute_script(
              'return angular.element(arguments[0]).controller()%s;' % self.__d2b_notation(prop=prop),
              element)
docs: :Description: Will return value of property of element's controller.
          :Warning: This will only work for angular.js 1.x.
          :Warning: Requires angular debugging to be enabled.
          :param element: Element for browser instance to target.
          :type element: WebElement
          :param prop: Property of element's angular controller to target.
          :type prop: string
          :example: 'messages.total'
          :return: string