code: def setUpClass(cls):
      if cls is MaxBatchSizesTestBase:
          raise unittest.SkipTest(
              "MaxBatchSizesTestBase defines base class for other tests."
          )
      super(MaxBatchSizesTestBase, cls).setUpClass()
  
imports: import unittest
  from tensorflow.core.framework import attr_value_pb2
  from tensorflow.python.compiler.tensorrt.test import tf_trt_integration_test_base
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the MaxBatchSizesTestBase obj's underlying member method code with example usage: obj.setUpClass(cls) without return types