add copyright

hubconf.py

@@ -1,3 +1,17 @@
+# 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.
+
 
 dependencies = ['paddle', 'numpy']
 
@@ -53,6 +67,9 @@ def _load_pretrained_urls():
 _checkpoints = _load_pretrained_urls()
 
 
+def _load_parameters(model, ):
+    pass
+
 
 def AlexNet(pretrained=False, **kwargs):
     '''AlexNet