GroupMembershipExpirationPolicy
| Name | Type | Required | Description |
|---|---|---|---|
| maximum_value | Optional[GroupMembershipExpiration] | No | Members in this group must be added with expiration times that occur before this value. |
| maximum_duration | Optional[DurationSeconds] | No | Members in this group must be added with expirations that are less than this duration in seconds into the future from the time they are added. |