Clojurians Log v2

Hi, newbie question here. I need a resolver when using pathom-datomic for a datomic reverse lookup (:parent/_id) https://docs.datomic.com/cloud/query/query-pull.html#reverse-lookup

(parser {}
        [{[:db/id 17592186045422]
          [:a.b/name
           :permission/owner-id
           {:parent/_id
            [:db/id
             :a.b.c/name
             :permission/owner-id
             {:permission/inbox-owner-id [:db/id :user/id]}
             {:parent/_id
              [:db/id
               :a.b.c.ol/name]}]}]}])