code: def test_multiple_oov(self):
      encoder = text_encoder.TokenTextEncoder(
          vocab_list=["hi", "bye", ZH_HELLO],
          oov_buckets=2,
          oov_token="UNK",
      )
      encoded = encoder.encode("hi boo zoo too foo bye")
      self.assertEqual(1, encoded[0])
      self.assertEqual(2, encoded[-1])
      self.assertIn(4, encoded)
      self.assertIn(5, encoded)
      self.assertEqual(6, encoder.vocab_size)
      self.assertEqual("hi UNK UNK bye", encoder.decode([1, 4, 5, 2]))
  
imports: from __future__ import unicode_literals
  import os
  from absl.testing import parameterized
  import numpy
  from tensorflow_datasets import testing
  from tensorflow_datasets.core.deprecated.text import text_encoder
label_desc: Use image node_id 3 for calling the TokenTextEncoderTest obj's underlying member method code with example usage: obj.test_multiple_oov() without return types