@Override
    public void registerService(String serviceName, String groupName, Instance instance) throws NacosException {
        getExecuteClientProxy(instance).registerService(serviceName, groupName, instance);
    }
@Test
    void testRegisterEphemeralServiceByGrpc() throws NacosException {
        String serviceName = "service1";
        String groupName = "group1";
        Instance instance = new Instance();
        instance.setServiceName(serviceName);
        instance.setClusterName(groupName);
        instance.setIp("1.1.1.1");
        instance.setPort(1);
        instance.setEphemeral(true);
        delegate.registerService(serviceName, groupName, instance);
        verify(mockGrpcClient, times(1)).registerService(serviceName, groupName, instance);
    }