def opened(self):
request = {<EOL>'<STR_LIT:type>': '<STR_LIT>',<EOL>'<STR_LIT>': self._token,<EOL>'<STR_LIT>': '<STR_LIT>'.format(version.user_agent,<EOL>ws4py.__version__),<EOL>}<EOL>self.send(json.dumps(request))<EOL>
Handler called when the WebSocket connection is opened. The first
        thing to do then is to authenticate ourselves.