WP_Widget_Media::widget( array $args, array $instance )

	public function widget( $args, $instance ) {
		$instance = wp_parse_args( $instance, wp_list_pluck( $this->get_instance_schema(), 'default' ) );

		// Short-circuit if no media is selected.
		if ( ! $this->has_content( $instance ) ) {
			return;
		}

		echo $args['before_widget'];

		/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );

		if ( $title ) {
			echo $args['before_title'] . $title . $args['after_title'];
		}

		/**
		 * Filters the media widget instance prior to rendering the media.
		 *
		 * @since WP-4.8.0
		 *
		 * @param array           $instance Instance data.
		 * @param array           $args     Widget args.
		 * @param WP_Widget_Media $this     Widget object.
		 */
		$instance = apply_filters( "widget_{$this->id_base}_instance", $instance, $args, $this );

		$this->render_media( $instance );

		echo $args['after_widget'];
	}