code: def confusion_matrix(y_true, y_pred, normalize):
      pass
  
file_path: sklearn-evaluation/src/sklearn_evaluation/metrics.py
imports: import numpy
  from sklearn.metrics import precision_score
  from sklearn_evaluation.preprocessing import binarize
  from sklearn_evaluation import util
  from sklearn_evaluation import validate
label_desc: Use image node_id 2 for calling a global function with example usage: confusion_matrix(y_true, y_pred, normalize) without return types