private static extern void RequestAuthorizationInternal(AuthorizationStatusCallbackDelegate callback);
private static extern void RequestPushAuthorizationInternal(int options, AuthorizationStatusCallbackDelegate authorizationStatusCallbackDelegate);
private static extern void RequestAuthorizationInternal(AuthorizationStatusCallbackDelegate callback);
private static extern void RequestPushAuthorizationInternal(int options, AuthorizationStatusCallbackDelegate authorizationStatusCallbackDelegate);