code: def __call__(self, environ, start_response):
      # TODO: update to use get_path_info
      app = self.get_application(peek_path_info(environ))
      if app is not None:
          pop_path_info(environ)
      else:
          app = self.default_app
      return app(environ, start_response)
  
file_path: dtale/dtale/django/dispatcher.py
imports: import sys
  from threading import Lock
  from werkzeug.wsgi import get_path_info
label_desc: Use image node_id 3 for calling the PathDispatcher obj's underlying member method code with example usage: obj.__call__(environ, start_response) and returns: app