docs: def secgroup_list(self):
          '''
          List security groups
          '''
          nt_ks = self.compute_conn
          ret = {}
          for item in nt_ks.security_groups.list():
              ret[item.name] = {
                  'name': item.name,
                  'description': item.description,
                  'id': item.id,
                  'tenant_id': item.tenant_id,
                  'rules': item.rules,
              }
          return ret