Trying to pass Generic type as parameter in Swift

Question

I am using AlamofireObjectMapper I need to create a func that accepts such a generic parameter:

func doSomething < T : BaseMappable > (myCustomClass : T) 
{
    Alamofire.request("url", method: .get, parameters: nil, encoding: JSONEncoding.default, headers: APIKeys().AuthorizedHeader).responseObject(completionHandler: { ( response :DataResponse<T>) in

             let data = response.result.value

            if let array = data?.objects
            {
                for ar in array
                {
                   self.allPromotions.append(ar)
                }
            }

        })


}

but iam gets an error:

Using the undeclared type 'myCustomClass' change how you guys reply to me in the comments, I fixed a fixed error, but I got another error when iam tries to call this method

I called such a method

doSomething(myCustomClass: Promotions)

but I got another error

The argument type 'Promotions.Type' does not match the expected type 'BaseMappable'

and here is my class Promotions

import ObjectMapper


class Promotions : Mappable  {





        var id:Int?
        var workshop_id:Int?
        var title:String?
        var desc:String?
        var start_date:String?
        var expire_date:String?
        var type:String?

        var objects  = [Promotions]()




        required init?(map: Map){

        }

        func mapping(map: Map) {
            id <- map["id"]
            workshop_id <- map["workshop_id"]
            title <- map["title"]
            desc <- map["desc"]
            start_date <- map["start_date"]
            expire_date <- map["expire_date"]
            type <- map["type"]
            objects <- map["promotions"]
        }




}

How can i fix it

Answer 1

Promotions.self .

doSomething(myCustomClass: Promotions.self)

, .

Answer 2

myCustomClass - doSomething. T, DataResponse DataResponse<T>.