code: @CanIgnoreReturnValue
    @Override
    public List<V> removeAll(@NullableDecl Object key) {
      return (List<V>) super.removeAll(key);
    }
docs: {@inheritDoc}
  
  <p>Because the values for a given key may have duplicates and follow the insertion ordering,
  this method returns a {@link List}, instead of the {@link Collection} specified in the {@link
  Multimap} interface.