code: def _frequency_bin(
      max_value: float = 0.0, lower: float = 0.0
  ) -> histograms.FrequencyBin:
      return histograms.FrequencyBin(
          max=max_value, lower=lower, upper=None, count=None, sum=None
      )
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from unittest import mock
  from unittest.mock import patch
  from typing import List, Optional
  import pipeline_dp
  import analysis
  from analysis import metrics
  from analysis import parameter_tuning
  from pipeline_dp.dataset_histograms import histograms
  from pipeline_dp.dataset_histograms import computing_histograms
label_desc: Use image node_id 3 for calling a global function with example usage: _frequency_bin(max_value, lower) and returns: histograms