code: def test_padding_3d(self):
      a = pad.create(
          [pad.causal, pad.full, pad.full], [3, 2, 3], [1], 3, -1
      )
      self.assertEqual(a, [[0, 0], [2, 0], [1, 1], [2, 2], [0, 0]])
  
file_path: sonnet/sonnet/src/pad_test.py
imports: from absl.testing import parameterized
  from sonnet.src import pad
  from sonnet.src import test_utils
  import tensorflow
label_desc: Use image node_id 3 for calling the PadTest obj's underlying member method code with example usage: obj.test_padding_3d() without return types