<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def send_facebook(self, token):
 """ Tells the server which Facebook account this client uses. After sending, the server takes some time to get the data from Facebook. Seems to be broken in recent versions of the game. """

        self.send_struct('<B%iB' % len(token), 81, *map(ord, token))
        self.facebook_token = token