TryTraverse.kt

fun <T, R> Try.Companion.traverse(list: List<T>, transform: (T) -> Try<R>): Try<List<R>> = Try {
    val newList = mutableListOf<R>()
    for (value in list) {
        when(val result = transform(value)) {
            is Success -> newList.add(result.value)
            is Failure -> throw result.error
        }
    }
    newList
}