code: def test_streamz_dataframe_patched(self):
      from streamz.dataframe import Random
  
      random_df = Random()
      self.assertIsInstance(random_df.hvplot, hvPlotTabular)
  
imports: from unittest import TestCase, SkipTest
  import numpy
  from hvplot.plotting import hvPlotTabular, hvPlot
label_desc: Use image node_id 2 for calling the TestPatchStreamz obj's underlying member method code with example usage: obj.test_streamz_dataframe_patched() without return types