code: def test_rankhot(self):
      enc = encoders.RankHotEncoder(verbose=1)
      enc.fit(X)
      t_f = enc.transform(X)
      inv_tf = enc.inverse_transform(t_f)
      th.verify_inverse_transform(X, inv_tf)
  
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 7 for calling the TestRankHotEncoder obj's underlying member method code with example usage: obj.test_rankhot() without return types