Iterator Extended version of PHP's iterator class that builds the foundation of our Collection class. Full class name: Kirby\Toolkit\Iterator kirby/src/Toolkit/Iterator.php#L23 $iterator->count() $iterator->current() $iterator->getIterator() $iterator->has() $iterator->indexOf() $iterator->key() $iterator->keyOf() $iterator->keys() $iterator->next() $iterator->prev() $iterator->rewind() $iterator->valid() new Iterator()