public function setSeller(\Gpupo\CommonSchema\ORM\Entity\Trading\Order\Shipping\Seller $seller = null)
    {
        $this->seller = $seller;

        return $this;
    }
public function setSeller(\Gpupo\CommonSchema\ORM\Entity\Trading\Order\Shipping\Seller $seller = null)
    {
        $this->seller = $seller;

        return $this;
    }
public function setSeller ( \ Gpupo \ CommonSchema \ ORM \ Entity \ Trading \ Order \ Shipping \ Seller $ seller = null ) { $ this -> seller = $ seller ; return $ this ; }
Set seller.

@param null|\Gpupo\CommonSchema\ORM\Entity\Trading\Order\Shipping\Seller $seller

@return Shipping
Set seller .