public function zip<Tu>( Traversable<Tu> $traversable, ): MutableMap<Tk, Pair<Tv, Tu>>;
If the number of values of the current
MutableMap are not equal to the
number of elements in the
Traversable, then only the combined elements
up to and including the final element of the one with the least number of
elements is included.
Traversableto use to combine with the elements of the current