code: def test_quantile_contributions(self, bins, q, expected_quantiles):
      histogram = hist.Histogram("name", bins)
      output = histogram.quantiles(q)
      self.assertListEqual(expected_quantiles, output)
  
file_path: pipelinedp/tests/dataset_histograms/histograms_test.py
imports: from typing import Union, List
  from absl.testing import absltest
  from absl.testing import parameterized
  from pipeline_dp.dataset_histograms import histograms
  from pipeline_dp.dataset_histograms.histograms import HistogramType, FrequencyBin
label_desc: Use image node_id 1 for calling the HistogramTest obj's underlying member method code with example usage: obj.test_quantile_contributions(bins, q, expected_quantiles) without return types