code: def __call__(self, env, start_resp):
      path = env.get("PATH_INFO")
      env["PATH_INFO"] = self.map.get(path, path)
      return self.app(env, start_resp)
  
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 RedirectMiddleware obj's underlying member method code with example usage: obj.__call__(env, start_resp) and returns: self