Proof using misi.
red. unfold client_cache_correct in *. simpl in *. intros. subst.
find_higher_order_rewrite.
destruct_update; simpl in *; eauto.
use_same_client_cache handleClientRequest_clientCache.
erewrite handleClientRequest_preserves_lastApplied_entries; eauto.
Qed.

(* Specifications: *)
Lemma client_cache_correct_timeout :
raft_net_invariant_timeout' client_cache_correct.