code: def _parse_prop(self, dd, row):
          
          key = row['name']
          if key.startswith('#'):
              deprecated = True
          else:
              deprecated = False
          v = dd.get(key)
          _value = self._get_value(row)
          if not v:
              v = dd.setdefault(key, {})
              v[_value] = deprecated
          else:
              if not _value in v:
                  v[_value] = deprecated
docs: :param dd: datadict
          :param _row: (tablename, row)
          :return: