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To make clear that you license your contribution under
the [Apache License Version 2.0, January 2004](http://www.apache.org/licenses/LICENSE-2.0)
you have to acknowledge this by using the following check-box.

- [ ] I hereby declare this contribution to be licenced under the [Apache License Version 2.0, January 2004](http://www.apache.org/licenses/LICENSE-2.0)

      by such Contributor that are necessarily infringed by their
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      with the Work to which such Contribution(s) was submitted. If You
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      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
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      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
      cross-claim or counterclaim in a lawsuit) alleging that the Work
      or a Contribution incorporated within the Work constitutes direct

      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
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### Contribution guidelines and standards

Before sending your pull request for
[review](https://github.com/tensorflow/tensorflow/pulls),
make sure your changes are consistent with the guidelines and follow the
TensorFlow coding style.

#### General guidelines and philosophy for contribution

*   Include unit tests when you contribute new features, as they help to a)