lib/Model/OrderShippingTracking.php
public function setNumber($number)
    {
        if (!is_null($number) && (strlen($number) > 120)) {
            throw new \InvalidArgumentException('invalid length for $number when calling OrderShippingTracking., must be smaller than or equal to 120.');
        }

        $this->container['number'] = $number;

        return $this;
    }
public function setNumber($number)
    {
        if (!is_null($number) && (strlen($number) > 120)) {
            throw new \InvalidArgumentException('invalid length for $number when calling OrderShippingTracking., must be smaller than or equal to 120.');
        }

        $this->container['number'] = $number;

        return $this;
    }
Sets number
@param string $number
@return $this