code: def test_privacy_id_count(self, data):
      id_count_accumulator = accumulator.PrivacyIdCountAccumulator(data)
      self.assertEqual(id_count_accumulator.compute_metrics(), 1)
  
file_path: pipelinedp/utility_analysis/tests/raw_accumulator_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import pipeline_dp
  from utility_analysis import raw_accumulator
label_desc: Use image node_id 5 for calling the AccumulatorTest obj's underlying member method code with example usage: obj.test_privacy_id_count(data) without return types