chore: import upstream snapshot with attribution

paddle/ap/include/rt_module/function.h

@@ -0,0 +1,35 @@
+// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "paddle/ap/include/adt/adt.h"
+#include "paddle/ap/include/code_module/func_declare.h"
+#include "paddle/ap/include/rt_module/dl_function.h"
+
+namespace ap::rt_module {
+
+struct FunctionImpl {
+  code_module::FuncDeclare func_declare;
+  DlFunction dl_function;
+
+  bool operator==(const FunctionImpl& other) const {
+    return this->func_declare == other.func_declare &&
+           this->dl_function == other.dl_function;
+  }
+};
+
+ADT_DEFINE_RC(Function, FunctionImpl);
+
+}  // namespace ap::rt_module