code: def tearDown(self):
      # Some offline tests produce an html file. Make sure we clean up :)
      try:
          os.remove(os.path.join(here, "temp-plot.html"))
          # Some tests that produce temp-plot.html
          # also produce plotly.min.js
          os.remove(os.path.join(here, "plotly.min.js"))
      except OSError:
          pass
  
imports: import json
  import os
  from unittest import TestCase
  import pytest
  import plotly
  import plotly.io
  from plotly.io._utils import plotly_cdn_url
label_desc: Use image node_id 1 for calling the PlotlyOfflineBaseTestCase obj's underlying member method code with example usage: obj.tearDown() without return types