public function add_events_checkbox_to_menu( $posts, $args, $post_type ) {
			global $_nav_menu_placeholder, $wp_rewrite;
			$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval( $_nav_menu_placeholder ) - 1 : - 1;
			$archive_slug          = $this->getLink();

			// In WP 4.4, $post_type is an object rather than an array
			if ( is_array( $post_type ) ) {
				// support pre WP 4.4
				$all_items = $post_type['args']->labels->all_items;
			} else {
				// support WP 4.4+
				$all_items = $post_type->labels->all_items;
			}

			array_unshift(
				$posts, (object) array(
					'ID'           => 0,
					'object_id'    => $_nav_menu_placeholder,
					'post_content' => '',
					'post_excerpt' => '',
					'post_title'   => $all_items,
					'post_type'    => 'nav_menu_item',
					'type'         => 'custom',
					'url'          => $archive_slug,
				)
			);

			return $posts;
		}