Given their incremental nature with multiple fetches, these kind of iterators
offer limited guarantees about the returned elements because the collection
can change several times during the iteration process.
/**
* {@inheritdoc}
*/
public function __construct(ClientInterface $client, $key, $match = null, $count = null)
{
$this->requiredCommand($client, 'SSCAN');
parent::__construct($client, $match, $count);
$this->key = $key;
}
