code: def testGetSearchThreshs(
      self, upper_thresh, lower_thresh, expected_upper, expected_lower
  ):
      word_counts = [("apple", 3), ("banana", 292), ("cucumber", 5)]
      upper, lower = learner.get_search_threshs(
          word_counts, upper_thresh, lower_thresh
      )
      self.assertEqual(upper, expected_upper)
      self.assertEqual(lower, expected_lower)
  
imports: import collections
  import logging
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.ops.ragged import ragged_string_ops
  from tensorflow_text.tools.wordpiece_vocab import wordpiece_tokenizer_learner_lib
label_desc: Use image node_id 1 for calling the GetSearchThreshsTest obj's underlying member method code with example usage: obj.testGetSearchThreshs(upper_thresh, lower_thresh, expected_upper, expected_lower) without return types