private static string Callback(string inputString, RpcServer rpcServer)
{
var testMessage = TestMessage.FromString(inputString);
var testMessageReply = new TestMessageReply();
testMessageReply.messageid = "0";
testMessageReply.consumerid = rpcServer.GetId();
testMessageReply.content = testMessage.content * 10;
testMessageReply.testmessage = testMessage;
var result = testMessageReply.ToJson();
return(result);
}