apply_filters_deprecated( 'default_contextual_help', string $old_help_default )

837			 * @deprecated 3.3.0 Use {@see get_current_screen()} with838			 *                   {@see WP_Screen::add_help_tab()} or839			 *                   {@see WP_Screen::remove_help_tab()} instead.840			 *841			 * @param string $old_help_default Default contextual help text.842			 */843			$default_help = apply_filters_deprecated(844				'default_contextual_help',845				array( '' ),846				'3.3.0',847				'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()'848			);849			if ( $default_help ) {