code: def test_global_sensitivity_equals_upper_bound_when_it_is_precise(
      self,
  ):
      l0_scoring_function = (
          private_contribution_bounds.L0ScoringFunction(
              params=construct_params(
                  max_partitions_contributed_upper_bound=3
              ),
              number_of_partitions=100,
              l0_histogram=None,
          )
      )
  
      self.assertEqual(3, l0_scoring_function.global_sensitivity)
  
file_path: pipelinedp/tests/private_contribution_bounds_test.py
imports: import unittest
  import pipeline_dp
  from pipeline_dp.dataset_histograms import histograms
  from pipeline_dp import private_contribution_bounds
label_desc: Use image node_id 2 for calling the L0ScoringFunctionTest obj's underlying member method code with example usage: obj.test_global_sensitivity_equals_upper_bound_when_it_is_precise() without return types