registerSignInHandler

NamiPaywallManager.registerSignInHandler { (fromVC, developerPaywallID, paywallMetadata) in
  // Add code to present UI for sign-in
}

[NamiPaywallManager registerSignInHandler:^(UIViewController * _Nullable fromVC, NSString *  _Nonnull developerPaywallID, NamiMetaPaywall * _Nonnull paywallMetadata) {
  // Add code to present UI for sign-in
}];

NamiPaywallManager.registerSignInListener { context, namiPaywall, developerPaywallId ->
    // Add code to present UI for sign-in
}

NamiPaywallManager.registerSignInListener((context, namiPaywall, developerPaywallId) -> {
    // Add code to present UI for sign-in
    return Unit.INSTANCE;
});

const eventEmitter = new NativeEventEmitter(NamiEmitter);

useEffect(() => {
  eventEmitter.addListener('SignInActivate', onSignInActivated);
},[])
          
const onSignInActivated = (event) => {
  // Add code to present UI for sign-in
}

NamiPaywallManager.signInEvents().listen((namiPaywall) {
    // Add code to present UI for sign-in
});

NamiPaywallManager.RegisterWithApplicationSignInProvider(applicationSignInProvider: (viewController, message, paywall) => {
  // code to execute
});