groupKey property
Google Group ID whose users are subject to this binding's restrictions.
See "id" in the
Google Workspace Directory API's Group Resource.
If a group's email address or alias is changed, this resource will
continue to point at the changed group. This field does not accept group
email addresses or aliases. Example: "01d520gv4vjcrht"
Optional. Immutable.
Implementation
core.String? groupKey;