rdpress.org/reference/functions/get_allowed_block_template_part_areas/) ` wp-includes/block-template-utils.php ` |  Returns a filtered list of allowed area values for template parts.   
[ get_default_block_template_types() ](https://developer.wordpress.org/reference/functions/get_default_block_template_types/) ` wp-includes/block-template-utils.php ` |  Returns a filtered list of default template types, containing their localized titles and descriptions.   
[ wp_omit_loading_attr_threshold() ](https://developer.wordpress.org/reference/functions/wp_omit_loading_attr_threshold/) ` wp-includes/media.php ` |  Gets the threshold for how many of the first content media elements to not lazy-load.   
[ rest_get_route_for_post_type_items() ](https://developer.wordpress.org/reference/functions/rest_get_route_for_post_type_items/) ` wp-includes/rest-api.php ` |  Gets the REST API route for a post type.   
[ rest_get_route_for_taxonomy_items() ](https://developer.wordpress.org/reference/functions/rest_get_route_for_taxonomy_items/) ` wp-includes/rest-api.php ` |  Gets the REST API route for a taxonomy.   
[ WP_Widget_Block::widget() ](https://developer.wordpress.org/reference/classes/wp_widget_block/widget/) ` wp-includes/widgets/class-wp-widget-block.php ` |  Outputs the content for the current Block widget instance.   
[ WP_Widget_Block::get_dynamic_classname() ](https://developer.wordpress.org/reference/classes/wp_widget_block/get_dynamic_classname/) ` wp-includes/widgets/class-wp-widget-block.php ` |  Calculates the classname to use in the block widget’s container HTML.   
[ _load_remote_block_patterns() ](https://developer.wordpress.org/reference/functions/_load_remote_block_patterns/) ` wp-includes/block-patterns.php ` |  Register Core’s official patterns from wordpress.org/patterns.   
[ WP_Theme_JSON_Resolver::get_theme_data() ](https://developer.wordpress.org/reference/classes/wp_theme_json_resolver/get_theme_data/) ` wp-includes/class-wp-theme-json-resolver.php ` |  Returns the theme’s data.   
[ WP_Theme_JSON_Resolver::get_core_data() ](https://developer.wordpress.org/reference/classes/wp_theme_json_resolver/get_core_data/) ` wp-includes/class-wp-theme-json-resolver.php ` |  Returns core’s origin config.   
[ WP_REST_Widgets_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_widgets_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php ` |  Prepares the widget for the REST response.   
[ WP_REST_Sidebars_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_sidebars_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php ` |  Prepares a single sidebar output for response.   
[ WP_REST_Templates_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_templates_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-templates-controller.php ` |  Prepare a single template output for response   
[ WP_REST_Templates_Controller::prepare_item_for_database() ](https://developer.wordpress.org/reference/classes/wp_rest_templates_controller/prepare_item_for_database/) ` wp-includes/rest-api/endpoints/class-wp-rest-templates-controller.php ` |  Prepares a single template for create or update.   
[ WP_REST_Pattern_Directory_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_pattern_directory_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-pattern-directory-controller.php ` |  Prepare a raw block pattern before it gets output in a REST API response.   
[ WP_REST_Pattern_Directory_Controller::get_collection_params() ](https://developer.wordpress.org/reference/classes/wp_rest_pattern_directory_controller/get_collection_params/) ` wp-includes/rest-api/endpoints/class-wp-rest-pattern-dir