on_leave/2 classy Function (Classy)

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4.1.23 on_leave(Hook, Prio) ¶

-spec on_leave(fun((OldCluster, Local,
                    kick_intent()) -> _),
               classy_hook:conf()) -> classy_hook:hook() when OldCluster ::
                                                                  cluster_id(),
                                                              Local ::
                                                                  site().

Register a hook that is executed after the local site leaves a cluster. This hook can perform destructive actions associated with cleanup.