code: def testAddingIndependentFeature(self):
      # Adding an independent feature into the computation, does not alter the
      # mutual information.
      np.random.seed(23)
      r = np.random.randint(0, 8, 50000)
      s = np.random.randint(0, 3, 50000) + r
      w = np.random.randn(50000)
  
      for method in ["smaller_data", "larger_data"]:
          mi_rs = _MI(
              [r],
              [s],
              [False],
              [False],
              estimate_method=method,
              seed=21,
          )
          mi_rws = _MI(
              [r, w],
              [s],
              [False] * 2,
              [False],
              estimate_method=method,
              seed=21,
          )
          self.assertAlmostEqual(mi_rws, mi_rs, places=2)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from tensorflow_data_validation.utils import mutual_information_util
label_desc: Use image node_id 5 for calling the RanklabMutualInformationTest obj's underlying member method code with example usage: obj.testAddingIndependentFeature() without return types