code: def save_params(self, fname):
          
          arg_params, aux_params = self.get_params()
          save_dict = {('arg:%s' % k) : v.as_in_context(cpu()) for k, v in arg_params.items()}
          save_dict.update({('aux:%s' % k) : v.as_in_context(cpu()) for k, v in aux_params.items()})
          ndarray.save(fname, save_dict)
docs: Saves model parameters to file.
  
          Parameters
          ----------
          fname : str
              Path to output param file.
  
          Examples
          --------
          >>> # An example of saving module parameters.
          >>> mod.save_params('myfile')