wp-includes/block-template-utils.php:511Attempts to add the template part's area information to the input template.
$template_infoarrayarrayfunction _add_block_template_part_area_info( $template_info ) { if ( wp_theme_has_theme_json() ) { $theme_data = wp_get_theme_data_template_parts(); } if ( isset( $theme_data[ $template_info['slug'] ]['area'] ) ) { $template_info['title'] = $theme_data[ $template_info['slug'] ]['title']; $template_info['area'] = _filter_block_template_part_area( $theme_data[ $template_info['slug'] ]['area'] ); } else { $template_info['area'] = WP_TEMPLATE_PART_AREA_UNCATEGORIZED; } return $template_info;}Introduced in 5.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/block-template-utils.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.