### What does this implement/fix? Explain your changes.

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### Does this close any currently open issues?

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### Any other comments?

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### Checklist

Check all those that are applicable and complete.

- [ ] Merged with latest `master` branch
- [ ] Added examples for testing to [examples/ directory](examples/)
- [ ] Travis CI passes (Mac support)
- [ ] AppVeyor passes (Windows support)