public function list_handlers( $args, $assoc_args ) {
		/** @var \WP_Embed $wp_embed */
		global $wp_embed;

		$all_handlers = array();

		ksort( $wp_embed->handlers );
		foreach ( $wp_embed->handlers as $priority => $handlers ) {
			foreach ( $handlers as $id => $handler ) {
				$all_handlers[] = array(
					'id'       => $id,
					'regex'    => $handler['regex'],
					'callback' => $handler['callback'],
					'priority' => $priority,
				);
			}
		}

		$formatter = $this->get_formatter( $assoc_args );
		$formatter->display_items( $all_handlers );
	}