Intents Validation

// Once resolution is completed, perform validation on the intent and provide confirmation (optional).
    
    func confirm(intent: INSendMessageIntent, completion: @escaping (INSendMessageIntentResponse) -> Void) {
        // Verify user is authenticated and your app is ready to send a message.
        
        let userActivity = NSUserActivity(activityType: NSStringFromClass(INSendMessageIntent.self))
        let response = INSendMessageIntentResponse(code: .ready, userActivity: userActivity)
        completion(response)
    }
    
    // Handle the completed intent (required).
    
    func handle(intent: INSendMessageIntent, completion: @escaping (INSendMessageIntentResponse) -> Void) {
        // Implement your application logic to send a message here.
        
        let userActivity = NSUserActivity(activityType: NSStringFromClass(INSendMessageIntent.self))
        let response = INSendMessageIntentResponse(code: .success, userActivity: userActivity)
        completion(response)
    }