code: def setUp(self):
      super(TestPlot, self).setUp()
      py.sign_in("PlotlyImageTest", "786r5mecv0")
      self.simple_figure = {"data": [{"x": [1, 2, 3], "y": [2, 1, 2]}]}
  
imports: from __future__ import absolute_import
  import urllib
  import requests
  import sys
  import json
  import warnings
  import chart_studio.tools
  import plotly.tools
  from chart_studio import session
  from chart_studio.tests.utils import PlotlyTestCase
  from chart_studio.plotly import plotly
  from _plotly_utils.exceptions import PlotlyError, PlotlyEmptyDataError
  from chart_studio.files import CONFIG_FILE
label_desc: Use image node_id 1 for calling the TestPlot obj's underlying member method code with example usage: obj.setUp() without return types