_DB_VERSION constant). * Bump it whenever the addon's schema files change so the central manager * (Addons::sync_addon_schemas) reruns install_tables(). Return an empty * string when the addon has no tables of its own. * * @return string */ public function get_db_version(): string; /** * (Re)create the addon's tables via dbDelta. * * Called by the central schema manager when get_db_version() differs from * the stored value. Must be idempotent. * * @return void */ public function install_tables(): void; }