insertAll method
Inserts all objects of iterable
at position index
in this list.
Listeners are notified after all objects have been inserted.
This increases the length of the list by the length of iterable
and
shifts all later objects towards the end of the list.
The index
value must be non-negative and no greater than length.
Implementation
@override
void insertAll(int index, Iterable<T> iterable) {
assert(_debugAssertNotDisposed());
_list!.insertAll(index, iterable);
notifyListeners();
}