docstr: Checks that the dataset is not prematurely materialized.
docstr_tok: ["Checks","that","the","dataset","is","not","prematurely","materialized","."]
code: def testDeferred(self):
      """Checks that the dataset is not prematurely materialized."""
      dataset = _test_dataset()
      func = functools.partial(
          lorenz_system.LorenzSystem,
          step_size=dataset.pop("step_size"),
          innovation_scale=dataset.pop("innovation_scale"),
          observation_scale=dataset.pop("observation_scale"),
          observation_index=dataset.pop("observation_index"),
      )
      self.validate_deferred_materialization(func, **dataset)
  
imports: import functools
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import test_util
  from inference_gym.internal import test_util
  from inference_gym.targets import lorenz_system
label_desc: Use image node_id 2 for calling the LorenzSystemTest obj's underlying member method code with example usage: obj.testDeferred() without return types