/**
* Add a member to a mailinglist
*
* @param string $listaddress
* @param array $params
*
* @return \Tolotra\Mailgun\Lists\Member
*/
public function addMember($listaddress, $params = [])
{
$mailinglist = new Mailinglist($listaddress);
return $mailinglist->addMember($params);
}