apply_filters( 'nav_menu_description', string $description )

973<?php974				 * Filters a navigation menu item's description.975				 *976				 * @since 3.0.0977				 *978				 * @param string $description The menu item description.979				 */980				$menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) );981			}982 983			$menu_item->classes = ! isset( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;984			$menu_item->xfn     = ! isset( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn;985		} else {986			$menu_item->db_id            = 0;