code: def test_multi_tensor_input_smoothgrad_sq(self) -> None:
      self._assert_multi_tensor_input("smoothgrad_sq", "gausslegendre")
  
imports: import unittest
  from typing import Any, cast, Tuple, Union
  import torch
  from captum._utils.common import _zeros
  from captum._utils.typing import BaselineType, Tensor, TensorOrTupleOfTensorsGeneric
  from captum.attr._core.integrated_gradients import IntegratedGradients
  from captum.attr._core.noise_tunnel import NoiseTunnel
  from captum.attr._utils.common import _tensorize_baseline
  from tests.helpers.basic import assertTensorAlmostEqual, BaseTest
  from tests.helpers.basic_models import BasicModel, BasicModel2, BasicModel3, BasicModel4_MultiArgs, BasicModel5_MultiArgs, BasicModel6_MultiTensor, BasicModel_MultiLayer
  from torch.nn import Module
label_desc: Use image node_id 16 for calling the Test obj's underlying member method code with example usage: obj.test_multi_tensor_input_smoothgrad_sq() without return types