insert method

void insert(
  1. int index,
  2. TimelineItem element
)

The inserted element is moved into the list and must not be used again Although you can use the "elementAt" method to get a reference to the added element

Implementation

void insert(int index, TimelineItem element) {
  _api._ffiListTimelineItemInsert(
    _box.borrow(),
    index,
    element._box.borrow(),
  );
  element._box.move();
}