If a property is non-optional, such as the uuid property for the Business model object, a nonoptional can be added to the property definition in the model mapping. Let's take a quick peak at the Business.plist.

JSON: /Model/Mappings/Business.json	PLIST: /Mappings/Business.plist

Once the model mapping has been updated, perform a build (⌘-B), and the changes should be reflected accordingly in the internal _Business.swift class.

Business.swift

import Foundation
import JSONModelKit

class _Business {

	var rating : Int?
	var longitude : Float?
	var latitude : Float?
	var open : Bool?
	var name : String?

	var uuid : Double

 	required init(_uuid : Double) {...}

 	convenience init?(_ dictionary: Dictionary<String, AnyObject>) {...}
}

Once the script has updated the internal file, the uuid property should be a non-optional property, and been added to the required initializer as an input parameter. In the case that the response dictionary does not contain a value for the uuid, the fail-able initializer will return nil.