predis/lib/Predis/Commands/ConnectionAuth.php

<?php

namespace Predis\Commands;

class ConnectionAuth extends Command
{
    public function getId()
    {
        return 'AUTH';
    }

    protected function onPrefixKeys(Array $arguments, $prefix)
    {
        /* NOOP */
    }

    protected function canBeHashed()
    {
        return false;
    }
}