code: def test_repr_mimebundle_mixed_renderer(fig1):
      pio.renderers.default = "notebook+plotly_mimetype"
      assert set(fig1._repr_mimebundle_().keys()) == set(
          {"application/vnd.plotly.v1+json", "text/html"}
      )
  
imports: import json
  import sys
  import base64
  import threading
  import time
  import pytest
  import requests
  import numpy
  import webbrowser
  import plotly.graph_objs
  import plotly.io
  from plotly.offline import get_plotlyjs
  from plotly.io._utils import plotly_cdn_url
label_desc: Use image node_id 20 for calling a global function with example usage: test_repr_mimebundle_mixed_renderer(fig1) without return types