code: def get_members_of_group(self, gname):
          
          hostgroup = self.find_by_name(gname)
          if hostgroup:
              return hostgroup.get_services()
          return []
docs: Get all members of a group which name is given in parameter
  
          :param gname: name of the group
          :type gname: str
          :return: list of the services in the group
          :rtype: list[alignak.objects.service.Service]