code: def test_predict_proba(create_X_y):
      X, y = create_X_y
  
      clf1 = Perceptron()
      clf1.fit(X, y)
      MCB([clf1, clf1]).fit(X, y)
  
file_path: DESlib/deslib/tests/dcs/test_mcb.py
imports: import numpy
  import pytest
  from sklearn.linear_model import Perceptron
  from sklearn.utils.estimator_checks import check_estimator
  from deslib.dcs.mcb import MCB
label_desc: Use image node_id 6 for calling a global function with example usage: test_predict_proba(create_X_y) without return types