chore: import upstream snapshot with attribution

python/paddle/distributed/rpc/internal.py

@@ -0,0 +1,32 @@
+# Copyright (c) 2022 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.
+
+import pickle
+from collections import namedtuple
+
+PythonFunc = namedtuple("PythonFunc", ["func", "args", "kwargs"])
+"""Some Python code interfaces called in C++"""
+
+
+def _serialize(obj):
+    return pickle.dumps(obj)
+
+
+def _deserialize(obj):
+    return pickle.loads(obj)
+
+
+def _run_py_func(python_func):
+    result = python_func.func(*python_func.args, **python_func.kwargs)
+    return result