def save(self, path, overWrite):
        """
        save OptimMethod
        :param path      path
        :param overWrite whether to overwrite
        """
        method=self.value
        return callBigDlFunc(self.bigdl_type, "saveOptimMethod", method, path, overWrite)
save OptimMethod
        :param path      path
        :param overWrite whether to overwrite