chore: import upstream snapshot with attribution

python/paddle/distributed/fleet/runtime/runtime_base.py

@@ -0,0 +1,41 @@
+# Copyright (c) 2020 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.
+
+__all__ = []
+
+
+class RuntimeBase:
+    def __init__(self):
+        pass
+
+    def _set_basic_info(self, context):
+        self.context = context
+
+    def _run_worker(self):
+        pass
+
+    def _init_server(self, *args, **kwargs):
+        pass
+
+    def _run_server(self):
+        pass
+
+    def _stop_worker(self):
+        pass
+
+    def _save_inference_model(self, *args, **kwargs):
+        pass
+
+    def _save_persistables(self, *args, **kwargs):
+        pass