1Copyright 2017 Facebook, Inc.
  2
  3You are hereby granted a non-exclusive, worldwide, royalty-free license to
  4use, copy, modify, and distribute this software in source code or binary
  5form for use in connection with the web services and APIs provided by
  6Facebook.
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  8As with any software that integrates with the Facebook platform, your use
  9of this software is subject to the Facebook Developer Principles and
 10Policies [http://developers.facebook.com/policy/]. This copyright notice
 11shall be included in all copies or substantial portions of the software.
 12
 13THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 14IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 15FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 16THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 17LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 18FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 19DEALINGS IN THE SOFTWARE.
 20