An example of how to use Mantle in Swift, assuming you have a bridging header that #imports Mantle.h

UsingMantleInSwift.swift

class MYModel: MTLModel, MTLJSONSerializing {
    @objc private(set) var name: String?
    @objc private(set) var identifier: String?
    @objc private(set) var count: Int = 0
    
    class func JSONKeyPathsByPropertyKey() -> [NSObject : AnyObject]! {
        return ["name": "model.name",
                "identifier": "model.id",
                "count": "model.c"]
    }
}

let dict = ["model": ["name": "ThePantsThief", "id": "abcde12345", "count": 21]]
let model = try? MTLJSONAdapter.modelOfClass(MYModel.self, fromJSONDictionary: dict)
let name = model?.name