src/Collection/IdentityWrapper.php
public function key()
    {
        $element = $this->collection->current();
        
        if ($element !== false) {
            return $this->getKey($element);
        }
    }
public function key()
    {
        $element = $this->collection->current();
        
        if ($element !== false) {
            return $this->getKey($element);
        }
    }
public function key ( ) { $ element = $ this -> collection -> current ( ) ; if ( $ element !== false ) { return $ this -> getKey ( $ element ) ; } }
{@inheritDoc}
{