code: def test_pad(self, input_param, input_shape, expected_shape):
      modes = ["constant", {"constant"}]
      self.pad_test(input_param, input_shape, expected_shape, modes)
  
file_path: MONAI/tests/test_spatial_padd.py
imports: from __future__ import annotations
  import unittest
  from parameterized import parameterized
  from monai.transforms import SpatialPadd
  from tests.padders import PadTest
label_desc: Use image node_id 1 for calling the TestSpatialPadd obj's underlying member method code with example usage: obj.test_pad(input_param, input_shape, expected_shape) without return types