code: def save_parameters(self, filename):
          
          params = self._collect_params_with_prefix()
          if self.pret_word_embs:  # don't save word embeddings inside model
              params.pop('pret_word_embs.weight', None)
          arg_dict = {key: val._reduce() for key, val in params.items()}
          ndarray.save(filename, arg_dict)
docs: Save model
  
          Parameters
          ----------
          filename : str
              path to model file