parent property
The resource name of the entity under which this Group resides in the
Cloud Identity resource hierarchy.
Must be of the form identitysources/{identity_source} for external
[identity-mapped groups](https://support.google.com/a/answer/9039510) or
customers/{customer_id} for Google Groups. The customer_id must begin
with "C" (for example, 'C046psxkn').
Find your customer ID.
Required. Immutable.
Implementation
core.String? parent;