/*not called */
public Response<SayHiResponse> sayHiAsync() { 
        return null; 
        /*not called */
    }
public Response<SayHiResponse> sayHiAsync() {
return null;
/*not called */
}
public Response<SayHiResponse> sayHiAsync() {
return null;
/*not called */
}
public Response<SayHiResponse> sayHiAsync() {
return null;
/*not called */
}