code: def service_desks(self):
          
          url = self._options['server'] + '/rest/servicedeskapi/servicedesk'
          headers = {'X-ExperimentalApi': 'opt-in'}
          r_json = json_loads(self._session.get(url, headers=headers))
          projects = [ServiceDesk(self._options, self._session, raw_project_json)
                      for raw_project_json in r_json['values']]
          return projects
docs: Get a list of ServiceDesk Resources from the server visible to the current authenticated user.
  
          :rtype: List[ServiceDesk]