code: def test_input_shape(self):
      np.testing.assert_equal(self.art_model.input_shape, (10,))
  
file_path: adversarial-robustness-toolbox/tests/estimators/regression/test_pytorch_regression.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import logging
  import unittest
  import numpy
  from torch import nn, optim
  from art.estimators.regression.pytorch import PyTorchRegressor
  from tests.utils import TestBase, master_seed
label_desc: Use image node_id 5 for calling the TestPytorchRegressor obj's underlying member method code with example usage: obj.test_input_shape() without return types