license-header.txt

 Copyright 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.

 Modifications copyright (C) 2017 Uber Technologies, Inc.

 Licensed under the Apache License, Version 2.0 (the "License"). You may not
 use this file except in compliance with the License. A copy of the License is
 located at

 http://aws.amazon.com/apache2.0

 or in the "license" file accompanying this file. This file 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.