/**
* @param mixed $value
* @param int|null $timestamp
*/
public function push($value, $timestamp = null)
{
$timestamp = null !== $timestamp ? (int) $timestamp : null;
$value = serialize($value);
if (null !== $timestamp) {
$this->_adapter->pushDelayed($this->getKey(), $value, $timestamp);
} else {
$this->_adapter->push($this->getKey(), $value);
}
}
