code: def call(self, obj, method, *args, **selectors):
          
          func = getattr(obj, method)
          return func(**selectors)
docs: This keyword can use object method from original python uiautomator
  
          See more details from https://github.com/xiaocong/uiautomator
  
          Example:
  
          | ${accessibility_text} | Get Object            | text=Accessibility | # Get the UI object                        |
          | Call                  | ${accessibility_text} | click              | # Call the method of the UI object 'click' |