code: def setUp(self):
      super(MemoryCleanupTest, self).setUp()
      self._devices = self.configureDevicesForMultiDeviceTest(3)
  
imports: import gc
  import time
  import weakref
  from absl.testing import parameterized
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import multi_device_iterator_ops
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.types import internal
label_desc: Use image node_id 1 for calling the MemoryCleanupTest obj's underlying member method code with example usage: obj.setUp() without return types