wp-includes/SimplePie/src/Item.php:816Get a single link for the item
$keyintoptional0$relstringoptional'alternate'string|null public function get_link(int $key = 0, string $rel = 'alternate') { $links = $this->get_links($rel); if ($links && $links[$key] !== null) { return $links[$key]; } return null; }Introduced in Beta 3. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Item.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.