Runtime environments are dependent objects. If you configure an export to include dependent objects, you can use the runtime environments in the export file, or you can select runtime environments in the target organization.
If you configure an export to exclude dependent objects, be sure that a suitable runtime environment for the assets exists in the target organization. If a dependent runtime environment doesn't exist in the target organization, during the import operation you must select a runtime environment in the target organization.
If the target organization has runtime environments with the same name as those in the export file, AI Agent Engineering uses the runtime environments that exist in the target organization. AI Agent Engineering does not overwrite the runtime environments in the target organization.