def METHOD_NAME(alphabet):
    """
    Get a list of available color scheme names for a given alphabet.
    Parameters
    ----------
    alphabet : Alphabet
        The alphbet to get the color scheme names for.
        The alphabet of the scheme must equal or extend this parameter,
        to be included in the list.
    Returns
    -------
    schemes : list of str
        A list of available color schemes.
    """
    scheme_list = []
    for scheme in _color_schemes:
        if scheme["alphabet"].extends(alphabet):
            scheme_list.append(scheme["name"])
    return scheme_list