code: def setUp(self):
      self.df = pd.DataFrame(
          dict(x=[1, 2, 3], y=[4, 2, 1], c=[3, 1, 5])
      )
  
imports: import cufflinks
  import pandas
  import numpy
  import unittest
  from nose.tools import assert_equals
label_desc: Use image node_id 1 for calling the TestIPlot obj's underlying member method code with example usage: obj.setUp() without return types