code: def new_german():
      german = fetch_german(numeric_only=True)
      german.X.age = german.X.age.apply(lambda a: 1 if a > 25 else 0)
      return german
  
file_path: AIF360/tests/sklearn/conftest.py
imports: import numpy
  import pytest
  from aif360.datasets import GermanDataset, AdultDataset
  from aif360.sklearn.datasets import fetch_german, fetch_adult
label_desc: Use image node_id 3 for calling a global function with example usage: new_german() and returns: german