code: def test__normalized_mae_score():
      from dtale.ppscore.calculation import _normalized_mae_score
  
      assert _normalized_mae_score(10, 5) == 0
      assert _normalized_mae_score(5, 10) == 0.5
  
file_path: dtale/tests/dtale/ppscore/test_calculation.py
imports: import os
  import pytest
  import pandas
  import numpy
  import sys
  import dtale.ppscore
  from dtale.pandas_util import check_pandas_version
label_desc: Use image node_id 2 for calling a global function with example usage: test__normalized_mae_score() without return types