Explain the motivation for making this change. What existing problem does the pull request solve?

Example: When saying "Add a function to do X", explain why it is necessary to have a way to do X.

**Test plan (required)**

Describe exact steps you've done to test that the code works. This means exact commands you ran, screenshots / videos if the pull request changes UI.

Make sure tests pass on Circle CI.

**Code formatting**

See the simple [style guide](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#style-guide).