code: def _init_metadata(self):
          
          self._files_metadata = {
              'element_id': Id(self.my_osid_object_form._authority,
                               self.my_osid_object_form._namespace,
                               'files'),
              'element_label': 'Files',
              'instructions': 'enter a file id with optional label',
              'required': False,
              'read_only': False,
              'linked': False,
              'array': False,
              'default_object_values': [{}],
              'syntax': 'OBJECT',
              'object_set': []
          }
          self._file_metadata = {
              'element_id': Id(self.my_osid_object_form._authority,
                               self.my_osid_object_form._namespace,
                               'file'),
              'element_label': 'File',
              'instructions': 'accepts an Asset Id',
              'required': True,
              'read_only': False,
              'linked': False,
              'array': False,
              'default_id_values': [''],
              'syntax': 'ID',
              'id_set': []
          }
          self._label_metadata = {
              'element_id': Id(self.my_osid_object_form._authority,
                               self.my_osid_object_form._namespace,
                               'label'),
              'element_label': 'Label',
              'instructions': 'enter a string',
              'required': False,
              'read_only': False,
              'linked': False,
              'array': False,
              'default_string_values': [str(ObjectId())],
              'syntax': 'STRING',
              'minimum_string_length': 0,
              'maximum_string_length': 128,
              'string_set': []
          }
docs: stub