code: def test_truncated_pre_thresholding(self, mock_method):
      eps, delta, max_partitions, pre_threshold = 1, 1e-5, 20, 42
      partition_selection.create_partition_selection_strategy(
          pipeline_dp.PartitionSelectionStrategy.GAUSSIAN_THRESHOLDING,
          eps,
          delta,
          max_partitions,
          pre_threshold,
      )
      mock_method.assert_called_once_with(
          "gaussian", eps, delta, max_partitions, pre_threshold
      )
  
file_path: pipelinedp/tests/partition_selection_test.py
imports: import pipeline_dp
  from pipeline_dp import partition_selection
  from absl.testing import absltest
  from absl.testing import parameterized
  import unittest
  from unittest.mock import patch
label_desc: Use image node_id 4 for calling the PartitionSelectionTest obj's underlying member method code with example usage: obj.test_truncated_pre_thresholding(mock_method) without return types