chore: import upstream snapshot with attribution

paddle/fluid/framework/python_operator.h

@@ -0,0 +1,37 @@
+// Copyright (c) 2025 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 <functional>
+#include <string>
+#include <unordered_map>
+#include <vector>
+#include "paddle/fluid/pir/dialect/operator/ir/ir_tensor.h"
+#include "paddle/phi/api/ext/op_meta_info.h"
+
+namespace paddle {
+namespace framework {
+
+void RegisterPythonOperator(
+    const std::string& op_name,
+    std::vector<std::string>&& op_inputs,
+    std::vector<std::string>&& op_outputs,
+    std::vector<std::string>&& op_attrs,
+    std::unordered_map<std::string, std::string>&& op_inplace_map,
+    PythonOperatorFunctionType&& func,
+    PythonOperatorInferMetaFunctionType&& infer_meta);
+
+}  // namespace framework
+}  // namespace paddle