instanceOwners

'Optional. Input only. The owner of this instance after creation. Format: alias@example.com Currently supports one owner only. If not specified, all of the service account users of your VM instance''s service account can use the instance. If specified, sets the access mode to Single user. For more details, see https://cloud.google.com/vertex-ai/docs/workbench/instances/manage-access-jupyterlab'