def METHOD_NAME(**kwargs):
    """Ensure all given values are instances of :class:`~wand.color.Color`.
    :raises TypeError: if value is not :class:`~wand.color.Color`.
    .. versionadded:: 0.5.4
    """
    for label, subject in kwargs.items():
        if not isinstance(subject, Color):
            fmt = "Expecting an instance of wand.color.Color for {0}, not {1}"
            msg = fmt.format(label, repr(subject))
            raise TypeError(msg)