How to use the pycantonese.util.ENCODING function in pycantonese

def read_chat(*filenames, **kwargs):
    """
    Create a corpus object based on *filenames*.

    :param filenames: one or multiple filenames (absolute-path or relative to
        the current directory; with or without glob matching patterns)

    :param kwargs: Keyword arguments. Currently, only ``encoding`` is
        recognized, which defaults to 'utf8'.
    """
    encoding = kwargs.get("encoding", ENCODING)
    return CantoneseCHATReader(*filenames, encoding=encoding)

def __init__(self, *filenames, **kwargs):
        encoding = kwargs.get("encoding", ENCODING)
        super(CantoneseCHATReader, self).__init__(
            *filenames, encoding=encoding
        )