wp-includes/class-wp-xmlrpc-server.php:1373Helper method for filtering out elements from an array.
$countintbool private function _is_greater_than_one( $count ) { return $count > 1; }Introduced in 3.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-xmlrpc-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.