Pheasant\Database\Mysqli\Connection::sequencePool PHP Method

    public function sequencePool()
    {
        if (!isset($this->_sequencePool)) {
            // use a seperate connection, ensures transaction rollback
            // doesn't clobber sequences
            $this->_sequencePool = new SequencePool(new self($this->_dsn));
        }
        return $this->_sequencePool;
    }