public async Task ServerStreamingCall(Status status = Status.Ok)
 {
     try
     {
         using (AsyncServerStreamingCall <PingResponse> call =
                    _client.ServerStreamingPing(new PingRequest()
         {
             Status = status
         }))
         {
             while (await call.ResponseStream.MoveNext(CancellationToken.None))
             {
             }
         }
     }
     catch (Exception)
     {
         // ignored
     }
 }