         
         // execute request
         gateway.request(request, serviceError: LanguageTranslationError()) { data, error in
-            let model = Mapper<TranslationModel>().map(data)
+            let model = Mapper<TranslationModel>().mapData(data)
             completionHandler(model, error)
         }
     }

            
        // execute request
        gateway.request(request, serviceError: LanguageTranslationError()) { data, error in
            let models = Mapper<TranslationModel>().mapArray(data, keyPath: "models")
            completionHandler(models, error)
        }
    }

        
        // execute request
        gateway.request(request, serviceError: LanguageTranslationError()) { data, error in
            let languages = Mapper<IdentifiedLanguage>().mapDataArray(data, keyPath: "languages")
            completionHandler(languages, error)
        }
    }
