code: def handle_index(self, _req):
      def app(env, start_resp):
          env["PATH_INFO"] = "/index.html"
          return self._app(env, start_resp)
  
      return app
  
imports: import io
  import json
  import logging
  import socket
  from werkzeug import routing
  from werkzeug import serving
  from werkzeug import exceptions
  from werkzeug.middleware.shared_data import SharedDataMiddleware
  from werkzeug.wrappers import Request, Response
label_desc: Use image node_id 2 for calling the StaticDir obj's underlying member method code with example usage: obj.handle_index(_req) and returns: app, self