c#中grpc拦截器中的等待继续方法

public class MyInterceptor : Interceptor
{
    public override AsyncUnaryCall<TResponse> UnaryCall<TRequest, TResponse>(
        TRequest request,
        ClientInterceptorContext<TRequest, TResponse> context,
        AsyncUnaryCallContinuation<TRequest, TResponse> continuation)
    {
        // 在请求处理之前执行一些逻辑
        Console.WriteLine("Before request processing");

        // 调用等待继续方法，暂停请求处理
        var call = continuation(request, context);

        // 注册等待继续方法的回调
        call.GetAwaiter().OnCompleted(() =>
        {
            // 在请求处理完成后执行一些逻辑
            Console.WriteLine("After request processing");
        });

        return call;
    }
}

// 创建gRPC客户端
var channel = new Channel("localhost", 50051, ChannelCredentials.Insecure);
var client = new MyService.MyServiceClient(channel);

// 添加拦截器到客户端
var interceptor = new MyInterceptor();
var options = new CallOptions(interceptors: new[] { interceptor });
client = client.Intercept(options);

// 发起gRPC请求
var request = new MyRequest();
var response = client.MyMethod(request);

// 等待请求处理完成
response.GetAwaiter().GetResult();

// 关闭gRPC客户端和通道
channel.ShutdownAsync().Wait();