1. override
List<E> toList({bool growable: true })

Creates a List containing the elements of this Iterable.

The elements are in iteration order. The list is fixed-length if growable is false.

Source 

@override
List<E> toList({ bool growable: true }) {
  _precacheEntireList();
  return new List<E>.from(_results, growable: growable);
}