code: def _convert_labels_into_string(y_true):
      return ["A" if x == 0 else x for x in y_true]
  
file_path: sklearn-evaluation/tests/test_ks_statistic.py
imports: import numpy
  import pytest
  import matplotlib.pyplot
  from matplotlib.testing.decorators import image_comparison
  from sklearn.linear_model import LogisticRegression
  from sklearn.datasets import load_breast_cancer, load_iris
  from sklearn_evaluation.plot import ks_statistic
label_desc: Use image node_id 1 for calling a global function with example usage: _convert_labels_into_string(y_true) and returns: unknown