code: def setUpClass(cls):
      cls.data = np.random.random(size=[8, 4, 3]).astype(np.float32)
      cls.imgdata = np.random.random(size=[2, 16, 16, 8]).astype(
          np.float32
      )
  
file_path: TensorLayer/tests/layers/test_layers_shape.py
imports: import os
  import unittest
  import numpy
  import tensorflow
  import tensorlayer
  from tests.utils import CustomTestCase
label_desc: Use image node_id 1 for calling the Layer_Shape_Test obj's underlying member method code with example usage: obj.setUpClass(cls) without return types