League\CommonMark\Block\Element\AbstractBlock::__construct PHP Method

    public function __construct()
    {
        $this->strings = new ArrayCollection();
    }

 public function __construct(\Closure $parser)
 {
     parent::__construct();
     parent::addChild($this->head = new TableRows(TableRows::TYPE_HEAD));
     parent::addChild($this->body = new TableRows(TableRows::TYPE_BODY));
     $this->parser = $parser;
 }