code: def test_error():
      try:
          sd.protected_attributes -= 1
          sdm = SampleDistortionMetric(sd, sd_distorted)
      except ValueError:
          assert True
  
file_path: AIF360/tests/test_sample_distortion_metric.py
imports: import numpy
  import pandas
  from scipy.spatial.distance import cdist
  from aif360.datasets import StructuredDataset
  from aif360.metrics import SampleDistortionMetric
label_desc: Use image node_id 6 for calling a global function with example usage: test_error() without return types