code: def test_valid_pre_threshold(self, pre_threshold):
      pipeline_dp.AggregateParams(
          noise_kind=pipeline_dp.NoiseKind.GAUSSIAN,
          max_partitions_contributed=1,
          max_contributions_per_partition=1,
          metrics=[pipeline_dp.Metrics.COUNT],
          pre_threshold=pre_threshold,
      )
  
imports: from absl.testing import parameterized
  import pipeline_dp
  from pipeline_dp import budget_accounting, aggregate_params
label_desc: Use image node_id 5 for calling the AggregateParamsTest obj's underlying member method code with example usage: obj.test_valid_pre_threshold(pre_threshold) without return types