LTR Layout always react native iOS

hey I have a question:

on react native app for iOS the default is LTR?I mean, I know there's an option to let RTL by adding that:

  [[RCTI18nUtil sharedInstance] allowRTL:YES];  [[RCTI18nUtil sharedInstance] forceRTL:YES];

but in case I want my app to be always LTR and not RTL even if the device set to RTL (Hebrew/Arabic) do I need to do any change? like adding

   [[RCTI18nUtil sharedInstance] allowRTL:NO];   [[RCTI18nUtil sharedInstance] forceRTL:NO];

or I don't need to touch the file and leave it as it?