code: def is_default(self):
          '''
          Checks if the field is in its default form
  
          :return: True if field is in default form
          '''
          for field in self._fields:
              if not field.is_default():
                  return False
          return super(Container, self).is_default(f is_default(self):
          '''
          Checks if the field is in its default form
  
          :return: True if field is in default form
          '''
          for field in self._fields:
              if not field.is_default():
                  return False
          return super(Container, self).is_default()
docs: Checks if the field is in its default form
  
          :return: True if field is in default form