code: def test_operator_noise_gaussian_vs_add_normal_dist():
      niter = 3
      for device in ("cpu", "gpu"):
          for batch_size in (1, 3):
              for mean, stddev, variable_dist_params in [
                  (10.0, 57.0, False),
                  (0.0, 0.0, True),
              ]:
                  yield (
                      _testimpl_operator_noise_gaussian_vs_add_normal_dist,
                      device,
                      mean,
                      stddev,
                      variable_dist_params,
                      batch_size,
                      niter,
                  )
  
imports: from nvidia.dali import pipeline_def
  import nvidia.dali.fn
  import nvidia.dali.types
  import os
  from test_utils import get_dali_extra_path, check_batch
label_desc: Use image node_id 3 for calling a global function with example usage: test_operator_noise_gaussian_vs_add_normal_dist() without return types