code: def onConnect(self):
      self.join(
          config["crossbar"]["realm"],
          ["wampcra"],
          config["crossbar"]["auth"]["username"],
      )
  
file_path: SerpentAI/serpent/wamp_components/analytics_component.py
imports: import asyncio
  from autobahn.asyncio.wamp import ApplicationSession, ApplicationRunner
  from autobahn.wamp.types import RegisterOptions, SubscribeOptions
  from autobahn.wamp import auth
  from serpent.config import config
  import aioredis
  import json
label_desc: Use image node_id 2 for calling the AnalyticsWAMPComponent obj's underlying member method code with example usage: obj.onConnect() without return types