block3.swift

let actions = [
    UNNotificationAction(identifier: "like-action",  title: "Like", options: []),
    UNNotificationAction(identifier: "open-app",  title: "Open App", options: []),
    UNNotificationAction(identifier: "dismiss",  title: "Dismiss", options: []),
]

let simpleCategory = UNNotificationCategory(identifier: "category-simple", actions: actions, intentIdentifiers: [], options: [])
UNUserNotificationCenter.current().setNotificationCategories([simpleCategory])