How to query host aggregate membership in openstack compute resource via scheduler_hints?

I’m trying to figure out how to use scheduler_hints when creating openstack_compute_instance_v2 resources.

The JsonFilter queries are a little dense to parse. It seems like the HostState class has a list of aggregates, so I’m just trying to build a query to look for membership in a specific aggregate… something like this doesn’t seem to be working:

[“in”, “<aggregate name>”, “$aggregates”]

Does anyone have any insight around this?