code: def test_custom_pad(self):
      actual = aggregated_pad(
          pad_type="custom",
          kernel_shape=(1, 2, 3),
          custom_pad=(7, 8, 9, 10, 11, 12),
      )
  
      expected = [7 + 8, 9 + 10, 11 + 12]
      np.testing.assert_equal(actual, expected)
  
imports: import numpy
  from coremltools.converters.mil.mil.ops.defs._utils import aggregated_pad, effective_kernel, spatial_dimensions_out_shape
label_desc: Use image node_id 3 for calling the TestAggregatePadding obj's underlying member method code with example usage: obj.test_custom_pad() without return types