toSortedSet
fun <T : Comparable<T>> Sequence<T>.toSortedSet(): SortedSet<T>Returns a SortedSet of all elements.
The operation is terminal.
fun <T> Sequence<T>.toSortedSet(
comparator: Comparator<in T>
): SortedSet<T>Returns a SortedSet of all elements.
Elements in the set returned are sorted according to the given comparator.
The operation is terminal.