wp-includes/SimplePie/src/Enclosure.php:501Get a single hash
$keyintoptional0string|null public function get_hash(int $key = 0) { $hashes = $this->get_hashes(); if (isset($hashes[$key])) { return $hashes[$key]; } return null; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Enclosure.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.