How to use the tabulate.simple_separated_format function in tabulate

def test_simple_separated_format_with_headers():
    "Regression: simple_separated_format() on tables with headers (issue #15)"
    from tabulate import simple_separated_format

    expected = "  a|  b\n  1|  2"
    formatted = tabulate(
        [[1, 2]], headers=["a", "b"], tablefmt=simple_separated_format("|")
    )
    assert_equal(expected, formatted)

def test_simple_separated_format_signature():
    "API: simple_separated_format() type signature is unchanged" ""
    assert type(simple_separated_format) is type(lambda: None)  # noqa
    expected_sig = [("separator", _empty)]
    _check_signature(simple_separated_format, expected_sig)

def test_simple_separated_format():
    "Regression: simple_separated_format() accepts any separator (issue #12)"
    from tabulate import simple_separated_format

    fmt = simple_separated_format("!")
    expected = "spam!eggs"
    formatted = tabulate([["spam", "eggs"]], tablefmt=fmt)
    print("expected: %r\n\ngot:      %r\n" % (expected, formatted))
    assert_equal(expected, formatted)

def test_unaligned_separated():
    "Output: non-aligned data columns"
    expected = "\n".join(["name|score", "Alice|1", "Bob|333"])
    fmt = simple_separated_format("|")
    result = tabulate(
        [["Alice", 1], ["Bob", 333]],
        ["name", "score"],
        tablefmt=fmt,
        stralign=None,
        numalign=None,
    )
    assert_equal(expected, result)

def test_simple_separated_format_signature():
    "API: simple_separated_format() type signature is unchanged" ""
    assert type(simple_separated_format) is type(lambda: None)  # noqa
    expected_sig = [("separator", _empty)]
    _check_signature(simple_separated_format, expected_sig)