Module `AppRegistry-BsReactNative`

let registerComponent: string => (unit => ReasonReact.reactClass) => unit;

This API only works in projects made with react-native init or in those made with Create React Native App which have since ejected

AppRegistry is the JS entry point to running all React Native apps. App root components should register themselves with AppRegistry.registerComponent, then the native system can load the bundle for the app and then actually run the app when it's ready by invoking AppRegistry.runApplication.

You can read more on AppRegistry API usage in official docs: https://facebook.github.io/react-native/docs/appregistry