how to get data from api response to display on label in swift

Question

I am trying to get API data to display in label i get api response successfully in model, how i can get response values in viewcontroller to show on label. here is the method to get json response

private textCode:CodeModel
private func load() {
    codeProvider.load(target: .myCode, withActivity: true) {[weak self] result in
        switch result {
        case .success(let response):
            print(response,"response here")
            self?.textCode = response
            self?.output.perform(action: .didLoad)
            case .failure(let error):
            print(error)
                
        }
    }
}
extension CodeModel: codeViewControllerOutput {
var displayable: DisplayableCode {
    DisplayableCode(user: textCode)
 }

in codeViewController class i am trying to call displayable

 private func fillFields() {
    let d = model.displayable
    codeLabl.text = d.someTextcode
}

Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value