wp-includes/php-ai-client/src/Providers/Http/Collections/HeadersCollection.php:31Constructor.
$headersarrayoptional[] public function __construct(array $headers = []) { foreach ($headers as $name => $value) { $this->set($name, $value); } }Introduced in 0.1.0. Unchanged from 7.0.4 through 7.1.0.
Signature, return type and hooks compared across 2 parsed releases.
src/wp-includes/php-ai-client/src/Providers/Http/Collections/HeadersCollection.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.