code: def setUp(self):
      super(TestTokenCounts, self).setUp()
      self.corpus_path = os.path.join(_TESTDATA, "corpus-*.txt")
      self.vocab_path = os.path.join(_TESTDATA, "vocab-*.txt")
  
imports: import os
  import random
  import six
  from six.moves import range
  import tensorflow.compat.v1
  from trax.data import tokenizer
label_desc: Use image node_id 1 for calling the TestTokenCounts obj's underlying member method code with example usage: obj.setUp() without return types