How to use the slider.utils.no_default function in slider

def _get(cs, ix, default=no_default):
    try:
        return cs[ix]
    except IndexError:
        if default is no_default:
            raise
        return default

def _get_as_str(groups, section, field, default=no_default):
    """Lookup a field from a given section.

    Parameters
    ----------
    groups : dict[str, dict[str, str]]
        The grouped osu! file.
    section : str
        The section to read from.
    field : str
        The field to read.
    default : int, optional
        A value to return if ``field`` is not in ``groups[section]``.

    Returns
    -------
    cs : str

def _get_as_int(groups, section, field, default=no_default):
    """Lookup a field from a given section and parse it as an integer.

    Parameters
    ----------
    groups : dict[str, dict[str, str]]
        The grouped osu! file.
    section : str
        The section to read from.
    field : str
        The field to read and parse.
    default : int, optional
        A value to return if ``field`` is not in ``groups[section]``.

    Returns
    -------
    integer : int

def _get(cs, ix, default=no_default):
    try:
        return cs[ix]
    except IndexError:
        if default is no_default:
            raise
        return default

def _get_as_float(groups, section, field, default=no_default):
    """Lookup a field from a given section and parse it as an float

    Parameters
    ----------
    groups : dict[str, dict[str, str]]
        The grouped osu! file.
    section : str
        The section to read from.
    field : str
        The field to read and parse.
    default : float, optional
        A value to return if ``field`` is not in ``groups[section]``.

    Returns
    -------
    f : float