code: def test_creates_2d_kernel(self):
      expected_kernel = tf.constant(
          [
              [0, 0, 0, 0, 0],
              [0, 0, 0, 0, 0],
              [0, 0, 1, 0, 0],
              [0, 0, 0, 0, 0],
          ]
      )[:, :, None, None]
      kernel = initializers.IdentityInitializer()(
          (4, 5, 1, 1), dtype=tf.float32
      )
      self.assertAllEqual(expected_kernel, kernel)
  
imports: import tensorflow
  from tensorflow_compression.python.layers import initializers
label_desc: Use image node_id 2 for calling the InitializerTest obj's underlying member method code with example usage: obj.test_creates_2d_kernel() without return types