code: def models_descriptive(self):
          
          f = self._parent
          return {name: {a: f[name].attrs[a]
                         for a in H5File.stored_attributes}
                  for name in f.keys()}
docs: list all stored models in given file.
  
          Returns
          -------
          dict: {model_name: {'repr' : 'string representation, 'created': 'human readable date', ...}