code: def test_bad_data(self):
      assert_raises(ValueError, Data, 2, 1)
      assert_raises(ValueError, RealData, 2, 1)
  
imports: from __future__ import division, print_function, absolute_import
  import numpy
  from numpy import pi
  from numpy.testing import assert_array_almost_equal, assert_equal, assert_warns
  from pytest import raises
  from scipy.odr import Data, Model, ODR, RealData, OdrStop, OdrWarning
label_desc: Use image node_id 1 for calling the TestODR obj's underlying member method code with example usage: obj.test_bad_data() without return types