docs: def clear_display_label(self):
          """Clears the display label.
  
          raise:  NoAccess - ``display_label`` cannot be modified
          *compliance: mandatory -- This method must be implemented.*
  
          """
          if (self.get_display_label_metadata().is_read_only() or
                  self.get_display_label_metadata().is_required()):
              raise errors.NoAccess()
          self._my_map['displayLabel'] = self._display_label_metadata['default_string_values'][0]