code: def test_kprototypes_unknowninit_soybean(self):
      kproto = kprototypes.KPrototypes(
          n_clusters=4, init="nonsense", verbose=2
      )
      with self.assertRaises(NotImplementedError):
          kproto.fit(STOCKS, categorical=[1, 2])
  
imports: import pickle
  import unittest
  import numpy
  import pandas
  from kmodes import kprototypes
  from kmodes.tests.test_kmodes import assert_cluster_splits_equal
  from kmodes.util.dissim import ng_dissim
label_desc: Use image node_id 13 for calling the TestKProtoTypes obj's underlying member method code with example usage: obj.test_kprototypes_unknowninit_soybean() without return types