How to use the buku.ExtendedArgumentParser.program_info function in buku

def test_program_info(platform, file):
    """test method."""
    with mock.patch('buku.sys') as m_sys:
        import buku
        file = mock.Mock()
        if file is None:
            buku.ExtendedArgumentParser.program_info()
        else:
            buku.ExtendedArgumentParser.program_info(file)
        if platform == 'win32' and file == m_sys.stdout:
            assert len(m_sys.stderr.write.mock_calls) == 1
        else:
            assert len(file.write.mock_calls) == 1

def test_program_info(platform, file):
    """test method."""
    with mock.patch('buku.sys') as m_sys:
        import buku
        file = mock.Mock()
        if file is None:
            buku.ExtendedArgumentParser.program_info()
        else:
            buku.ExtendedArgumentParser.program_info(file)
        if platform == 'win32' and file == m_sys.stdout:
            assert len(m_sys.stderr.write.mock_calls) == 1
        else:
            assert len(file.write.mock_calls) == 1