wp-includes/Requests/src/Requests.php:623Get default certificate path.
string public static function get_certificate_path() { return self::$certificate_path; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/Requests/src/Requests.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.