wp_map_sidebars_widgets()
Function: Compares a list of sidebars with their widgets against an allowed list.
Source: wp-includes/widgets.php:1372
term_description()
Function: Retrieves term description.
Source: wp-includes/category-template.php:1264
wp_get_mime_types()
Function: Retrieves the list of mime types and file extensions.
Source: wp-includes/functions.php:3323