def METHOD_NAME():
    """ Locate the built-in device storage used for this app only.
        This storage is APP-SPECIFIC, and not visible to other apps.
        It will be wiped when your app is uninstalled.
        Returns directory path to storage.
    """
    activity = _get_activity()
    currentActivity = cast('android.app.Activity', activity)
    context = cast('android.content.ContextWrapper',
                   currentActivity.getApplicationContext())
    file_p = cast('java.io.File', context.getFilesDir())
    return os.path.normpath(os.path.abspath(
        file_p.getAbsolutePath().replace("/", os.path.sep)))