code: public function setUri($uri)
      {
          if (!is_null($uri) && (strlen($uri) > 500)) {
              throw new \InvalidArgumentException('invalid length for $uri when calling OrderShippingTracking., must be smaller than or equal to 500.');
          }
  
          $this->container['uri'] = $uri;
  
          return $this;
      }
docs: Sets uri
  @param string $uri
  @return $this