Summary:
These definitions make these libraries act as flow strict. We have them internally but need them in react native to be able to make files in react native flow strict.
Internally our flowconfig includes all the configs in react-native-github.
Changelog:
[Internal]: Add flow strict type definitions for modules
Reviewed By: zackargyle
Differential Revision: D18839594
fbshipit-source-id: d523e15f00a9cfa66d3789bb249655bcbe6d04eb
Eli White