Accessing a shared mailbox

[Borkido]

Hi,
i was just wondering what the intended way to access a shared mailbox is. Since the Graph-url is
"https://graph.microsoft.com/v1.0/users/shared@mailbox/messages" i was assuming something like graph.users.messages but that does not work.
I was able to get the messages via graph.me.messages.with_url(f"https://graph.microsoft.com/v1.0/users/shared@mailbox/messages").get() but now that i need to update them i cant find a workaround since graph.me.messages.with_url(f"https://graph.microsoft.com/v1.0/users/shared@mailbox/messages/msg_id").patch() does not exist, and graph.me.messages.by_message_id(message_id=msg_id).patch(body=body) complains about only working with delegated authentication flow.
Is there a better way to do this that i have missed?

[Borkido]

The answer seems to be using MessageItemRequestBuilder and MessagesRequestBuilder directly.