code: def test_preds(self):
      model = tests.mocks.models_other.NaiveBinaryClassifier()
      model.fit(test=True, score=True)
      preds = model.predict(model.pipeline.test_data)
      self.assertTrue((preds == 1).all())
  
imports: import unittest
  import tests.mocks.models_other
  import numpy
label_desc: Use image node_id 3 for calling the TestNaiveBinaryClassifier obj's underlying member method code with example usage: obj.test_preds() without return types