code: def _create_service_nwk(self, tenant_id, tenant_name, direc):
          
          net_dict = self.retrieve_dcnm_net_info(tenant_id, direc)
          net = utils.Dict2Obj(net_dict)
          subnet_dict = self.retrieve_dcnm_subnet_info(tenant_id, direc)
          subnet = utils.Dict2Obj(subnet_dict)
          try:
              self.dcnm_obj.create_service_network(tenant_name, net, subnet)
          except dexc.DfaClientRequestFailed:
              LOG.error("Failed to create network in DCNM %s", direc)
              return False
          return True
docs: Function to create the service in network in DCNM.