public Future<?> greetMeAsync(String requestType, AsyncHandler<GreetMeResponse> asyncHandler) { 
        return null; 
        /*not called */
    }
public Future<?> greetMeAsync(String requestType, AsyncHandler<GreetMeResponse> asyncHandler) { 
        return null; 
       
    }
public future<?> greetmeasync(string requesttype, asynchandler<greetmeresponse> asynchandler) { return null; }