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

def test_float():
    i = tomlkit.float_("34.56")

    assert isinstance(i, Float)

def _new(self, result):
        raw = str(result)

        if self._sign:
            sign = "+" if result >= 0 else "-"
            raw = sign + raw

        return Float(result, self._trivia, raw)

def item(value, _parent=None):
    from .container import Container

    if isinstance(value, Item):
        return value

    if isinstance(value, bool):
        return Bool(value, Trivia())
    elif isinstance(value, int):
        return Integer(value, Trivia(), str(value))
    elif isinstance(value, float):
        return Float(value, Trivia(), str(value))
    elif isinstance(value, dict):
        val = Table(Container(), Trivia(), False)
        for k, v in sorted(value.items(), key=lambda i: (isinstance(i[1], dict), i[0])):
            val[k] = item(v, _parent=val)

        return val
    elif isinstance(value, list):
        if value and isinstance(value[0], dict):
            a = AoT([])
        else:
            a = Array([], Trivia())

        for v in value:
            if isinstance(v, dict):
                table = Table(Container(), Trivia(), True)

def item(value, _parent=None):
    from .container import Container

    if isinstance(value, Item):
        return value

    if isinstance(value, bool):
        return Bool(value, Trivia())
    elif isinstance(value, int):
        return Integer(value, Trivia(), str(value))
    elif isinstance(value, float):
        return Float(value, Trivia(), str(value))
    elif isinstance(value, dict):
        val = Table(Container(), Trivia(), False)
        for k, v in sorted(value.items(), key=lambda i: (isinstance(i[1], dict), i[0])):
            val[k] = item(v, _parent=val)

        return val
    elif isinstance(value, list):
        if value and isinstance(value[0], dict):
            a = AoT([])
        else:
            a = Array([], Trivia())

        for v in value:
            if isinstance(v, dict):
                table = Table(Container(), Trivia(), True)

def _new(self, result):
        raw = str(result)

        if self._sign:
            sign = "+" if result >= 0 else "-"
            raw = sign + raw

        return Float(result, self._trivia, raw)

def __new__(cls, value, trivia, raw):  # type: (float, Trivia, str) -> Integer
        return super(Float, cls).__new__(cls, value)