/**
* Invoked whenever the local shard's leadership role changes.
*
- * @param isLeader true if the shard has become leader, false if it has
- * become a follower.
+ * @param isLeader true if the shard has become leader, false if it has become a follower.
* @param hasLeader true if the shard knows about leader ID
*/
abstract void onLeadershipChange(boolean isLeader, boolean hasLeader);