code: def test_reflect_padding_with_4x4_filter_mean(image_shape):
      expected_plane = tf.constant(
          [
              [5.0, 5.0, 5.0],
              [5.0, 5.0, 5.0],
              [5.0, 5.0, 5.0],
          ]
      )
  
      verify_values(
          mean_filter2d,
          image_shape=image_shape,
          filter_shape=(4, 4),
          padding="REFLECT",
          constant_values=0,
          expected_plane=expected_plane,
      )
  
imports: import pytest
  import numpy
  import tensorflow
  from tensorflow_addons.image import mean_filter2d
  from tensorflow_addons.image import median_filter2d
  from tensorflow_addons.image import gaussian_filter2d
  from tensorflow_addons.utils import test_utils
  from scipy.ndimage.filters import gaussian_filter
label_desc: Use image node_id 10 for calling a global function with example usage: test_reflect_padding_with_4x4_filter_mean(image_shape) without return types