def METHOD_NAME(self) -> ExecResponse:
    """ Sends an end stream message. """
    return ExecResponse(
        data=vpb.ExecuteScriptResponse(
            status=_ok(),
            data=vpb.QueryData(batch=self.row_batch(
                [[]] * len(self.relation.columns),
                eos=True,
                eow=True
            )),
        )
    )