Gets current parameters.

        Returns
        -------
        `(arg_params, aux_params)`
            A pair of dictionaries each mapping parameter names to NDArray values.

def get_params(self):
        """Gets current parameters.

        Returns
        -------
        `(arg_params, aux_params)`
            A pair of dictionaries each mapping parameter names to NDArray values.
        """
        assert self.binded and self.params_initialized

        if self._params_dirty:
            self._sync_params_from_devices()
        return (self._arg_params, self._aux_params)