CoreDataPersistentContainer.swift

// Create a persistent container with an specific description for the stores 
private(set) lazy var container: NSPersistentContainer = {
        
        let description = NSPersistentStoreDescription()
        description.type = NSSQLiteStoreType
        description.shouldInferMappingModelAutomatically = false
        description.shouldMigrateStoreAutomatically = true
        
        let container = NSPersistentContainer(name: CoreDataStackTheNewWay.modelName)
        container.persistentStoreDescriptions = [description]
        
        container.loadPersistentStores(completionHandler: { (storeDescription, error) in
            if let error = error as NSError? {
                fatalError("Unresolved error \(error), \(error.userInfo)")
            }
        })
        return container
    }()