public function setTrading(\Gpupo\CommonSchema\ORM\Entity\Trading\Trading $trading = null)
    {
        $this->trading = $trading;

        return $this;
    }
public function setTrading(\Gpupo\CommonSchema\ORM\Entity\Trading\Trading $trading = null)
    {
        $this->trading = $trading;

        return $this;
    }
public function setTrading ( \ Gpupo \ CommonSchema \ ORM \ Entity \ Trading \ Trading $ trading = null ) { $ this -> trading = $ trading ; return $ this ; }
Set trading.

@param null|\Gpupo\CommonSchema\ORM\Entity\Trading\Trading $trading

@return Order
Set trading .