public function issue()
    {
        $url = $this->getEntityUrl() . $this->id . '/issue';

        return $this->request(Requests::POST, $url);
    }
public function issue()
    {
        $url = $this->getEntityUrl() . $this->id . '/issue';

        return $this->request(Requests::POST, $url);
    }
public function issue ( ) { $ url = $ this -> getEntityUrl ( ) . $ this -> id . '/issue' ; return $ this -> request ( Requests :: POST , $ url ) ; }
Issues drafted invoice

@return Invoice
Issues drafted invoice