code: def setUpModule():
      # If a physical GPU is available make sure TF sees at least two.
      gpus = tf.config.experimental.list_physical_devices(
          device_type="GPU"
      )
      if len(gpus) == 1:
          logging.info(
              "Splitting one physical GPU into two logical GPUs."
          )
          tf.config.experimental.set_virtual_device_configuration(
              gpus[0],
              [
                  tf.config.experimental.VirtualDeviceConfiguration(
                      memory_limit=1024
                  ),
                  tf.config.experimental.VirtualDeviceConfiguration(
                      memory_limit=1024
                  ),
              ],
          )
  
imports: import os
  from absl import logging
  from absl.testing import absltest
  from absl.testing import parameterized
  from sonnet.src import test_utils
  from sonnet.src.conformance import goldens
  from sonnet.src.distribute import replicator
  from sonnet.src.distribute import replicator_test_utils
  import tensorflow
  import tree
label_desc: Use image node_id 2 for calling a global function with example usage: setUpModule() without return types