Actually create async generic server
diff --git a/test/cpp/qps/server.h b/test/cpp/qps/server.h
index 32a3e85..196fdac 100644
--- a/test/cpp/qps/server.h
+++ b/test/cpp/qps/server.h
@@ -108,6 +108,7 @@
 
 std::unique_ptr<Server> CreateSynchronousServer(const ServerConfig& config);
 std::unique_ptr<Server> CreateAsyncServer(const ServerConfig& config);
+std::unique_ptr<Server> CreateAsyncGenericServer(const ServerConfig& config);
 
 }  // namespace testing
 }  // namespace grpc