public function pop()
{
$result = $this->tarantool->call('queue.take', [$this->space, $this->tubeName, '0.00000001']);
if (0 === $result['count']) {
throw new NoItemAvailableException($this);
}
$tuple = $result['tuples_list'][0];
$this->tarantool->call('queue.delete', [$this->space, $tuple[0]]);
return substr($tuple[3], 0, -9);
}