)
Returns a new set which is the intersection between this set and other.
That is, the returned set contains all the elements of this Set that
are also elements of other according to other.contains.
Source
/**
* Returns a new set which is the intersection between this set and [other].
*
* That is, the returned set contains all the elements of this [Set] that
* are also elements of [other] according to `other.contains`.
*/
Set<E> intersection(Set<Object> other);