code: def testSaveInsideFunction(self, compression):
      dataset = dataset_ops.Dataset.range(42)
  
      @def_function.function
      def save_fn():
          dataset.save(self._test_dir, compression=compression)
  
      save_fn()
      dataset = dataset_ops.Dataset.load(
          self._test_dir, dataset.element_spec, compression=compression
      )
      self.assertDatasetProduces(dataset, range(42))
  
imports: import os
  import shutil
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.data.kernel_tests import checkpoint_test_base
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import combinations
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
label_desc: Use image node_id 7 for calling the IOTest obj's underlying member method code with example usage: obj.testSaveInsideFunction(compression) without return types