+ACTIVITY_UPDATE_VIM_OPERATION_STATE = "update-vim-operation-state"
+ACTIVITY_UPDATE_VIM_STATE = "update-vim-state"
+ACTIVITY_PREPARE_VNF_RECORDS = "prepare-vnf-records"
+ACTIVITY_DEPLOY_NS = "deploy-ns"
+ACTIVITY_UPDATE_NS_STATE = "update-ns-state"
+ACTIVITY_CHECK_NS_INSTANTIATION_FINISHED = "check-ns-instantiation-finish"
+ACTIVITY_CREATE_MODEL_IF_DOESNT_EXIST = "create-model-if-doesnt-exist"
+ACTIVITY_DEPLOY_CHARM = "deploy-charm"
+ACTIVITY_CHECK_CHARM_STATUS = "check-charm-status"
+ACTIVITY_CHANGE_NF_STATE = "change_nf_state"
+ACTIVITY_CHANGE_NF_INSTANTIATION_STATE = "change_nf_instantiation_state"
+ACTIVITY_CHANGE_NF_NOTIFICATION_STATE = "change_nf_notification_state"
+ACTIVITY_GET_TASK_QUEUE = "get_task_queue"