code: def setUpClass(cls):
      super(DPOptimizerTest, cls).setUpClass()
      tf.compat.v1.disable_eager_execution()
  
imports: import unittest
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow import estimator
  from tensorflow.compat.v1 import estimator
  from tensorflow_privacy.privacy.optimizers import dp_optimizer_vectorized
  from tensorflow_privacy.privacy.optimizers.dp_optimizer_vectorized import VectorizedDPAdagrad
  from tensorflow_privacy.privacy.optimizers.dp_optimizer_vectorized import VectorizedDPAdam
  from tensorflow_privacy.privacy.optimizers.dp_optimizer_vectorized import VectorizedDPSGD
label_desc: Use image node_id 1 for calling the DPOptimizerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types