code: def test_id_count_merge(self, **kwargs):
      id_count_accumulator = accumulator.PrivacyIdCountAccumulator([])
      total_id_count = len(kwargs) + 1
      for data in kwargs.values():
          id_count_accumulator.add_accumulator(
              accumulator.PrivacyIdCountAccumulator(data)
          )
      self.assertEqual(
          id_count_accumulator.compute_metrics(), total_id_count
      )
  
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 6 for calling the AccumulatorTest obj's underlying member method code with example usage: obj.test_id_count_merge() without return types