How to retrieve cookie from $request parametr if it's a string?

[shizzic]

I have this example

$this->worker = new Worker('websocket://0.0.0.0:8090', $this->context);
        $this->worker->name = 'websocket';
        $this->worker->count     = 1;
        $this->worker->transport = 'ssl';

        $this->worker->onConnect = function($connection) {
            $connection->onWebSocketConnect = function ($connection, $request) {
                $connection->send($request);
            };
        };

And when i'm trying to use any method on $request like $request->cookie() i keep getting error like "Error: Call to a member function cookie() on string". Is there a build in parser for request or do i need to handle it myself?
When i worked with SSE, $request seems to be normal (not string).

[Chance-fyi]

What's your version of workerman?
The parameters passed to onWebSocketConnect are not the same for 4.x and 5.x versions.

4.x

workerman/Protocols/Websocket.php

Lines 445 to 460 in f7c9667

	// Try to emit onWebSocketConnect callback.
	$on_websocket_connect = $connection->onWebSocketConnect ?? $connection->worker->onWebSocketConnect ?? false;
	if ($on_websocket_connect) {
	static::parseHttpHeader($buffer);
	try {
	\call_user_func($on_websocket_connect, $connection, $buffer);
	} catch (\Exception $e) {
	Worker::stopAll(250, $e);
	} catch (\Error $e) {
	Worker::stopAll(250, $e);
	}
	if (!empty($_SESSION) && \class_exists('\GatewayWorker\Lib\Context')) {
	$connection->session = \GatewayWorker\Lib\Context::sessionEncode($_SESSION);
	}
	$_GET = $_SERVER = $_SESSION = $_COOKIE = array();
	}

5.x

workerman/src/Protocols/Websocket.php

Lines 386 to 394 in c9e4100

	// Try to emit onWebSocketConnect callback.
	$onWebsocketConnect = $connection->onWebSocketConnect ?? $connection->worker->onWebSocketConnect ?? false;
	if ($onWebsocketConnect) {
	try {
	$onWebsocketConnect($connection, new Request($buffer));
	} catch (Throwable $e) {
	Worker::stopAll(250, $e);
	}
	}