code: def test_padding_2d(self):
      a = pad.create_from_padfn((pad.causal, pad.full), (3), (1, 1), 2)
      self.assertEqual(a, ((2, 0), (2, 2)))
  
file_path: dm-haiku/haiku/_src/pad_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import pad
label_desc: Use image node_id 1 for calling the PadTest obj's underlying member method code with example usage: obj.test_padding_2d() without return types