wp-includes/SimplePie/src/Cache/CallableNameFilter.php:49Method to create cache filename with.
$namestringstring public function filter(string $name): string { return call_user_func($this->callable, $name); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Cache/CallableNameFilter.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.