protected function init() {

		// Break early if the LifterLMS Labs is installed and enabled.
		if ( class_exists( 'LifterLMS_Labs' ) && llms_parse_bool( get_option( 'llms_lab_beaver-builder_enabled' ) ) ) {
			return;
		}

		if ( ! class_exists( 'FLBuilder' ) || ! class_exists( 'FLBuilderModel' ) || ! class_exists( 'FLBUilderModule' ) ) {
			return;
		}

		// Prevent uneditable llms post types from being enabled for page building.
		add_filter( 'fl_builder_admin_settings_post_types', array( $this, 'remove_uneditable_post_types' ) );

		// Add migrateable post types to the builder by default.
		add_filter( 'fl_builder_post_types', array( $this, 'enable_post_types_by_default' ) );

		add_action( 'wp', array( $this, 'load_modules' ), 1 );
		add_action( 'init', array( $this, 'load_templates' ) );

		add_filter( 'fl_builder_register_module', array( $this, 'register_module' ), 10, 2 );

		add_filter( 'llms_page_restricted', array( $this, 'mod_page_restrictions' ), 999, 2 );

		add_filter( 'fl_builder_register_settings_form', array( $this, 'add_visibility_settings' ), 999, 2 );

		add_filter( 'fl_builder_is_node_visible', array( $this, 'is_node_visible' ), 10, 2 );

		// Hide editors when builder is enabled for a post.
		add_filter( 'llms_metabox_fields_lifterlms_course_options', array( $this, 'mod_metabox_fields' ) );
		add_filter( 'llms_metabox_fields_lifterlms_membership', array( $this, 'mod_metabox_fields' ) );

		add_filter( 'fl_builder_upgrade_url', array( $this, 'upgrade_url' ) );

		// LifterLMS Private Areas.
		add_action( 'llms_pa_before_do_area_content', array( $this, 'llms_pa_before_content' ) );
		add_action( 'llms_pa_after_do_area_content', array( $this, 'llms_pa_after_content' ) );
	}