How to index postgres' JSONField?

Hi, I'm not sure if this is something I failed to find/understand from the docs or if it is an entirely new feature.

Basically I have a project in which models have a 'custom property' system powered by Postgres' JSONField. This allows users to add a json document to the set of properties of each object.
I'd like to be able to search (via ES) those fields like they were any other property.

As an example:

# models.py
class MyModel(models.Model):
   name = models.CharField()
   attrs = postgres.fields.JSONField(default=dict)

# how I'd expect ES documents to look like:
{
   ...,
   "name": "banana",
   "attrs" : { "fruitColor": "yellow", "growsOnTrees": true}
},

{
   ...,
   "name": "samuel",
   "attrs" : { "friends": ["mark", "francesca", "luke"], "birthday": "10/10/1990"}
}

What type of SearchField should I use?
Thanks!

The issue provides a models.py example using Django's PostgreSQL JSONField and asks how to expose its contents to Elasticsearch. Start by checking the search-field documentation and the JSONField integration, then determine whether the expected nested fields are supported or need documentation. Done means a documented, verified way to index and search these values, or a clearly scoped feature request.