Interface Traversable

Traversable
- IteratorAggregate extends Traversable
  - CodeIgniter\Cookie\CookieStore implements Countable, IteratorAggregate<string, Cookie>
- Iterator extends Traversable
  - SeekableIterator extends Iterator
    - SplFileObject implements RecursiveIterator, SeekableIterator
  - RecursiveIterator extends Iterator
    - SplFileObject implements RecursiveIterator, SeekableIterator