def METHOD_NAME():
    """Test default _predict_proba."""
    cls = _TestClassifier()
    X = np.random.random(size=(5, 1, 10))
    y = np.array([1, 0, 1, 0, 1])
    with pytest.raises(KeyError):
        cls._predict_proba(X)
    cls.fit(X, y)
    p = cls._predict_proba(X)
    assert p.shape == (5, 2)