public function blockLimit($number = null)
    {
        $number = $number !== null ? intval($number) : $number;
        $this->_blockLimit = $number;

        return $this;
    }
public function blockLimit($number = null)
    {
        $number = $number !== null ? intval($number) : $number;
        $this->_blockLimit = $number;

        return $this;
    }
public function blockLimit ( $ number = null ) { $ number = $ number !== null ? intval ( $ number ) : $ number ; $ this -> _blockLimit = $ number ; return $ this ; }
Limits the number of blocks in this region.

Null means unlimited number.

@param null|int $number Defaults to null
@return \Block\View\Region
Limits the number of blocks in this region .