code: def test_zero_padding_2d_errors_if_padding_argument_invalid(self):
      with self.assertRaises(ValueError):
          layers.ZeroPadding2D(padding=(1,))
      with self.assertRaises(ValueError):
          layers.ZeroPadding2D(padding=(1, 2, 3))
      with self.assertRaises(ValueError):
          layers.ZeroPadding2D(padding="1")
      with self.assertRaises(ValueError):
          layers.ZeroPadding2D(padding=((1, 2), (3, 4, 5)))
      with self.assertRaises(ValueError):
          layers.ZeroPadding2D(padding=((1, 2), (3, -4)))
      with self.assertRaises(ValueError):
          layers.ZeroPadding2D(padding=((1, 2), "3"))
  
file_path: keras/keras/layers/reshaping/zero_padding2d_test.py
imports: import numpy
  from absl.testing import parameterized
  from keras import backend
  from keras import layers
  from keras import testing
label_desc: Use image node_id 4 for calling the ZeroPadding2DTest obj's underlying member method code with example usage: obj.test_zero_padding_2d_errors_if_padding_argument_invalid() without return types