Copyright 2017 Facebook, Inc.

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use, copy, modify, and distribute this software in source code or binary
form for use in connection with the web services and APIs provided by
Facebook.

As with any software that integrates with the Facebook platform, your use
of this software is subject to the Facebook Developer Principles and
Policies [http://developers.facebook.com/policy/]. This copyright notice
shall be included in all copies or substantial portions of the software.

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