code: public static BroadcastReceiver registerReceivedNackHandler(final Context context,
                                                                  final PebbleNackReceiver receiver) {
          return registerBroadcastReceiverInternal(context, INTENT_APP_RECEIVE_NACK, receiver);
      }
docs: A convenience function to assist in programatically registering a broadcast receiver for the 'RECEIVE_NACK'
  intent.
  
  To avoid leaking memory, activities registering BroadcastReceivers <em>must</em> unregister them in the
  Activity's {@link android.app.Activity#onPause()} method.
  
  @param context
  The context in which to register the BroadcastReceiver.
  @param receiver
  The receiver to be registered.
  
  @return The registered receiver.
  
  @see Constants#INTENT_APP_RECEIVE_NACK