How to use the tomlkit.items.item function in tomlkit

def test_dicts_are_converted_to_tables():
    t = item({"foo": {"bar": "baz"}})

    assert (
        t.as_string()
        == """[foo]
bar = "baz"

def test_strings_behave_like_strs():
    i = item("foo")

    assert i == "foo"
    assert i.as_string() == '"foo"'

    i += " bar"
    assert i == "foo bar"
    assert i.as_string() == '"foo bar"'

    i += " é"
    assert i == "foo bar é"
    assert i.as_string() == '"foo bar é"'

    doc = parse('str = "foo" # Comment')
    doc["str"] += " bar"

    assert doc.as_string() == 'str = "foo bar" # Comment'

def test_array_behaves_like_a_list():
    a = item([1, 2])

    assert a == [1, 2]
    assert a.as_string() == "[1, 2]"

    a += [3, 4]
    assert a == [1, 2, 3, 4]
    assert a.as_string() == "[1, 2, 3, 4]"

    del a[2]
    assert a == [1, 2, 4]
    assert a.as_string() == "[1, 2, 4]"

    del a[-1]
    assert a == [1, 2]
    assert a.as_string() == "[1, 2]"

n = item(12)

    s = pickle.dumps(n)
    assert pickle.loads(s).as_string() == "12"

    n = item(12.34)

    s = pickle.dumps(n)
    assert pickle.loads(s).as_string() == "12.34"

    n = item(True)

    s = pickle.dumps(n)
    assert pickle.loads(s).as_string() == "true"

    n = item(datetime(2018, 10, 11, 12, 34, 56, 123456))

    s = pickle.dumps(n)
    assert pickle.loads(s).as_string() == "2018-10-11T12:34:56.123456"

    n = item(date(2018, 10, 11))

    s = pickle.dumps(n)
    assert pickle.loads(s).as_string() == "2018-10-11"

    n = item(time(12, 34, 56, 123456))

    s = pickle.dumps(n)
    assert pickle.loads(s).as_string() == "12:34:56.123456"

    n = item([1, 2, 3])

def dict_path_exit(path, key, old_parent, new_parent, new_items):
    ret = new_parent
    if isinstance(new_parent, (Mapping, dict)):
        vals = dict(new_items)
        try:
            new_parent.update(new_items)
        except AttributeError:
            # Handle toml containers specifically
            try:
                new_parent.update(vals)
            # Now use default fallback if needed
            except AttributeError:
                ret = new_parent.__class__(vals)
    elif isinstance(new_parent, tomlkit.items.Array):
        vals = tomlkit.items.item([v for i, v in new_items])
        try:
            new_parent._value.extend(vals._value)
        except AttributeError:
            ret = tomlkit.items.item(vals)
    elif isinstance(new_parent, (Sequence, list)):
        vals = [v for i, v in new_items]
        try:
            new_parent.extend(vals)
        except AttributeError:
            ret = new_parent.__class__(vals)  # tuples
    elif isinstance(new_parent, (Set, set)):
        vals = [v for i, v in new_items]
        try:
            new_parent.update(vals)
        except AttributeError:
            ret = new_parent.__class__(vals)  # frozensets

def integer(raw):  # type: (str) -> Integer
    return item(int(raw))

def boolean(raw):  # type: (str) -> Bool
    return item(raw == "true")

vals = dict(new_items)
        try:
            new_parent.update(new_items)
        except AttributeError:
            # Handle toml containers specifically
            try:
                new_parent.update(vals)
            # Now use default fallback if needed
            except AttributeError:
                ret = new_parent.__class__(vals)
    elif isinstance(new_parent, tomlkit.items.Array):
        vals = tomlkit.items.item([v for i, v in new_items])
        try:
            new_parent._value.extend(vals._value)
        except AttributeError:
            ret = tomlkit.items.item(vals)
    elif isinstance(new_parent, (Sequence, list)):
        vals = [v for i, v in new_items]
        try:
            new_parent.extend(vals)
        except AttributeError:
            ret = new_parent.__class__(vals)  # tuples
    elif isinstance(new_parent, (Set, set)):
        vals = [v for i, v in new_items]
        try:
            new_parent.update(vals)
        except AttributeError:
            ret = new_parent.__class__(vals)  # frozensets
    else:
        raise RuntimeError("unexpected iterable type: %r" % type(new_parent))
    return ret

def float_(raw):  # type: (str) -> Float
    return item(float(raw))