code: def _init_metadata(self, **kwargs):
          
          osid_objects.OsidObjectForm._init_metadata(self, **kwargs)
          self._url_default = self._mdata['url']['default_string_values'][0]
          self._data_default = self._mdata['data']['default_object_values'][0]
          self._accessibility_type_default = self._mdata['accessibility_type']['default_type_values'][0]
docs: Initialize form metadata