Hooks

Hook	Arguments	Fires
`lh_shadow_taxonomies_object_shadowed`	`$object_id, $type, $term_id, $taxonomy`	When a new shadow term is created for a user or BuddyPress group. Not fired for post types.
`lh_shadow_taxonomies_object_unshadowed`	`$object_id, $type, $term_id, $taxonomy`	Just before a user’s or group’s shadow term is deleted, so the term is still valid. Not fired for post types.
`lh_shadow_taxonomies_term_assigned`	`$object_id, $term_id, $taxonomy, $shadowed_id, $type, $tagged_by, $tagged_at`	When a shadow term is newly set on an object (from `set_object_terms`), and again for existing assignments during cron reconciliation, with `$tagged_by` 0 and `$tagged_at` empty. `$tagged_at` is a UTC MySQL datetime.
`lh_shadow_taxonomies_term_removed`	`$object_id, $term_id, $taxonomy, $shadowed_id, $type`	When a shadow term is removed from an object.
`lh_shadow_taxonomies_process`, `lh_shadow_taxonomies_initial`	none	Cron events (daily and one-off at activation) that run the backfill and reconciliation passes.

Hook	Default and arguments	Purpose
`lh_shadow_taxonomies_init_plugin`	`true`	Return false to stop the plugin registering any hooks, without deactivating it. Evaluated on `plugins_loaded`.
`lh_shadow_taxonomies_return_object_whitelist`	`array( 'user', 'bp_group', 'post' )`	Object types the lookup helpers accept; anything else is treated as `post`.
`lh_shadow_taxonomies_active_post_statuses`	`array( 'publish' )`	Post statuses that get a shadow term, on save and in the backfill.
`lh_shadow_taxonomies_get_blacklisted_ids_by_taxonomy`	`array()`, `$taxonomy, $object_type`	Object IDs never to shadow in that taxonomy. Honoured by the backfill for all types and by `maybe_shadow_user()` for users; saving a post or group does not check it.
`lh_shadow_taxonomies_return_object_backfill_number`	`50`, `$taxonomy, $object_type`	Objects backfilled per taxonomy per cron run.
`lh_shadow_taxonomies_return_plugin_debugging_status`	`false`	With `WP_DEBUG` on, return true to log term insert and update failures to the error log.