/**
* Base URL to web applications endpoint
* Valid Values: ["https://www.paypal.com/{country_code}/webapps/xocspartaweb/webflow/sparta/proxwebflow", "https://www.paypal.com/{country_code}/proxflow"]
*
* @param string $web_url
* @throws \InvalidArgumentException
* @return $this
*/
public function setWebUrl($web_url)
{
UrlValidator::validate($web_url, "WebUrl");
$this->web_url = $web_url;
return $this;
}