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-rw-r--r--tensorflow/python/kernel_tests/gradient_checker.py15
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diff --git a/tensorflow/python/kernel_tests/gradient_checker.py b/tensorflow/python/kernel_tests/gradient_checker.py
index d08fc393fa..c816660cb3 100644
--- a/tensorflow/python/kernel_tests/gradient_checker.py
+++ b/tensorflow/python/kernel_tests/gradient_checker.py
@@ -1,3 +1,18 @@
+# Copyright 2015 Google Inc. 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.
+# ==============================================================================
+
"""Gradient checker for any ops, graphs.
The gradient checker verifies numerically that an op/graph properly