def METHOD_NAME():
    func = Join(values=[1, "a", False, 1.1])
    with pytest.raises(TypeError) as error:
        str(func)
    assert "Pipeline variables do not support __str__ operation." in str(error.value)
    with pytest.raises(TypeError) as error:
        int(func)
    assert str(error.value) == "Pipeline variables do not support __int__ operation."
    with pytest.raises(TypeError) as error:
        float(func)
    assert str(error.value) == "Pipeline variables do not support __float__ operation."