docs: def update_thread(cls, session, conversation, thread):
          """Update a thread.
  
          Args:
              session (requests.sessions.Session): Authenticated session.
              conversation (helpscout.models.Conversation): The conversation
                  that the thread belongs to.
              thread (helpscout.models.Thread): The thread to be updated.
  
          Returns:
              helpscout.models.Conversation: Conversation including freshly
                  updated thread.
          """
          data = thread.to_api()
          data['reload'] = True
          return cls(
              '/conversations/%s/threads/%d.json' % (
                  conversation.id, thread.id,
              ),
              data=data,
              request_type=RequestPaginator.PUT,
              singleton=True,
              session=session,
          )