code: def test_handleCategoricalValue(self):
      enc = encoders.RankHotEncoder(cols=["categorical"])
      enc.fit(X)
      t_f = enc.transform(X)
      inv_tf = enc.inverse_transform(t_f)
      self.assertEqual(
          t_f.shape[1] - (X.shape[1] - 1), len(X.categorical.unique())
      )
      self.assertTupleEqual(inv_tf.shape, X.shape)
  
file_path: category_encoders/tests/test_rankhot.py
imports: import pandas
  from unittest import TestCase
  import tests.helpers
  import numpy
  import category_encoders
label_desc: Use image node_id 2 for calling the TestRankHotEncoder obj's underlying member method code with example usage: obj.test_handleCategoricalValue() without return types