Multiple Module Support ?

[HTCZeus]

Hi, i had created a project with create-react-native-library react-native-testsdk, there is only one iOS and one android module (testsdkViewManager) file but I have 4 native module class and 1 native view class for each iOS and android. Should I bring them all in one file? Also boilerplate comes with:
export const testsdkView =
UIManager.getViewManagerConfig(ComponentName) != null
? requireNativeComponent(ComponentName)
: () => {
throw new Error(LINKING_ERROR);
};

  This is for native view how can I also add native module to my index.tsx file ?