setAll method
The elements of iterable are written into this list, starting at position index. This operation does not increase the length of the list.
The index must be non-negative and no greater than length.
The iterable must not have more elements than what can fit from index to length.
If iterable is based on this list, its values may change during the setAll operation.
Implementation
@override
Future<void> setAll(int index, Iterable<E> elements) async {
return Future<void>(() => _collective.setAll(index, elements));
}