code: def get(self):
      try:
          errormessage = self.get_argument("error")
      except Exception:
          errormessage = ""
      self.render("login.html", errormessage=errormessage)
  
file_path: bokeh/examples/server/app/server_auth/auth.py
imports: import tornado
  from tornado.web import RequestHandler
label_desc: Use image node_id 1 for calling the LoginHandler obj's underlying member method code with example usage: obj.get() without return types