4.1.28 on_node_classify(Hook, Prio) ¶

-spec
     on_node_classify(fun((site_metadata()) -> [node_set()]),
                      classy_hook:conf()) -> classy_hook:hook().

Register a hook that can place a site’s node into an arbitrary number of custom node sets, based on classy:info/0.

See classy:enrich_site_info/2, See classy:node_sets/0.