* Reply to {@link FindLeader} message, containing the address of the leader actor, as known to the raft actor which
* sent the message. If the responding actor does not have knowledge of the leader, {@link #getLeaderActor()} will
* return {@link Optional#empty()}.
* Reply to {@link FindLeader} message, containing the address of the leader actor, as known to the raft actor which
* sent the message. If the responding actor does not have knowledge of the leader, {@link #getLeaderActor()} will
* return {@link Optional#empty()}.