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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def vulns_list(self, service_id=None, service_port=None, hostfilter=None):
 """ List of vulnerabilities for a service :param service_id: t_services.id :param service_port: tcp/#, udp/# or info/# :param hostfilter: Valid hostfilter or None :return: t_services.rows.as_list() """

        return self.send.service_vulns_list(service_id, service_port, hostfilter)