AWS Resource Groups (resource-groups) restJson1 service for fakecloud.
Batch 1: the full 23-operation control plane from the AWS Smithy model --
group lifecycle (Create/Get/Update/Delete/ListGroups), resource queries
(GetGroupQuery/UpdateGroupQuery), explicit membership
(GroupResources/UngroupResources/ListGroupResources), search
(SearchResources), group configuration (Get/PutGroupConfiguration), tagging
(Tag/Untag/GetTags), account settings (Get/UpdateAccountSettings), grouping
statuses (ListGroupingStatuses), and tag-sync tasks
(Start/Get/List/CancelTagSyncTask). Every operation is backed by real,
account-partitioned, persisted state with AWS-shaped
arn:aws:resource-groups:...:group/<name>/<id> ARNs.
Query-based membership resolution (evaluating a TAG_FILTERS_1_0 /
CLOUDFORMATION_STACK_1_0 query against live resources) depends on the
cross-service tag index that ships with the Resource Groups Tagging API
batch; until then a query-based group resolves to its explicitly associated
members. Explicit GroupResources membership is fully real now.