Enqueue.kt

inline fun <reified T> Call<T>.enqueue(crossinline result: (Result<T>) -> Unit) {
    enqueue(object: Callback<T> {
        override fun onFailure(call: Call<T>, error: Throwable) {
            result(Result.Failure(call, error))
        }

        override fun onResponse(call: Call<T>, response: Response<T>) {
            result(Result.Success(call, response))
        }
    })
}