Initializes a newly allocated set with the objects that are contained in a given array.
- iOS 5.0+
- macOS 10.7+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
An array of objects to add to the new set.
If the same object appears more than once in array, it is represented only once in the returned ordered set.
An initialized ordered set with the contents of array. The returned ordered set might be different than the original receiver.