apply_filters( "{$template_type}_template_hierarchy" )

1673	} else {1674		list( $template_type ) = explode( '-', $slug );1675	}1676	$valid_template_types = array( '404', 'archive', 'attachment', 'author', 'category', 'date', 'embed', 'frontpage', 'home', 'index', 'page', 'paged', 'privacypolicy', 'search', 'single', 'singular', 'tag', 'taxonomy' );1677	if ( in_array( $template_type, $valid_template_types, true ) ) {1678		/** This filter is documented in wp-includes/template.php */1679		return apply_filters( "{$template_type}_template_hierarchy", $template_hierarchy );1680	}1681	return $template_hierarchy;1682}1683 1684/**1685 * Inject ignoredHookedBlocks metadata attributes into a template or template part.