code: def test_pad_arrays_to_match(self, a, b, expected_a, expected_b):
      a2, b2 = analyzers._pad_arrays_to_match(a, b)
      self.assertAllClose(a2, expected_a)
      self.assertAllClose(b2, expected_b)
  
file_path: transform/tensorflow_transform/analyzers_test.py
imports: import pickle
  import numpy
  import tensorflow
  from tensorflow_transform import analyzers
  from tensorflow_transform import test_case
label_desc: Use image node_id 2 for calling the AnalyzersTest obj's underlying member method code with example usage: obj.test_pad_arrays_to_match(a, b, expected_a, expected_b) without return types