code: def _response(self, body, is_json=False, code=200):
      self.send_response(code)
      mime = "application/json" if is_json else "text/html"
      self.send_header("Content-type", mime)
      self.end_headers()
      if is_json:
          self.wfile.write(json.dumps(body).encode("utf-8"))
      else:
          self.wfile.write(body)
  
imports: import os
  import json
  from http.server import BaseHTTPRequestHandler
  from threading import Thread
  from multiprocessing import Pipe
  from multiprocessing.connection import Connection
  from urllib.parse import urlparse
  import time
  from .card_client import CardContainer
  from .exception import CardNotPresentException
  from .card_resolver import resolve_paths_from_task
  from metaflow.metaflow_config import DATASTORE_LOCAL_DIR
  from metaflow import namespace
  from metaflow.exception import CommandException, MetaflowNotFound, MetaflowNamespaceMismatch
label_desc: Use image node_id 5 for calling the CardViewerRoutes obj's underlying member method code with example usage: obj._response(body, is_json, code) without return types