docs: def json_2_os_instance(json_obj):
          """
          transform JSON obj coming from Ariane to ariane_clip3 object
          :param json_obj: the JSON obj coming from Ariane
          :return: ariane_clip3 OS instance object
          """
          LOGGER.debug("OSInstance.json_2_os_instance")
          return OSInstance(osiid=json_obj['osInstanceID'],
                            name=json_obj['osInstanceName'],
                            description=json_obj['osInstanceDescription'],
                            admin_gate_uri=json_obj['osInstanceAdminGateURI'],
                            osi_embedding_osi_id=json_obj['osInstanceEmbeddingOSInstanceID'],
                            osi_ost_id=json_obj['osInstanceOSTypeID'],
                            osi_embedded_osi_ids=json_obj['osInstanceEmbeddedOSInstancesID'],
                            osi_ip_address_ids=json_obj['osInstanceIPAddressesID'],
                            osi_nic_ids=json_obj['osInstanceNICsID'],
                            osi_application_ids=json_obj['osInstanceApplicationsID'],
                            osi_environment_ids=json_obj['osInstanceEnvironmentsID'],
                            osi_subnet_ids=json_obj['osInstanceSubnetsID'],
                            osi_team_ids=json_obj['osInstanceTeamsID'])