def METHOD_NAME(releasegroupid):
    """Get the list of cover art associated with a release group.
    The return value is the deserialized response of the `JSON listing
    <http://musicbrainz.org/doc/Cover_Art_Archive/API#.2Frelease-group.2F.7Bmbid.7D.2F>`_
    returned by the Cover Art Archive API.
    If an error occurs then a :class:`~musicbrainzngs.ResponseError` will
    be raised with one of the following HTTP codes:
    * 400: `Releaseid` is not a valid UUID
    * 404: No release exists with an MBID of `releaseid`
    * 503: Ratelimit exceeded
    """
    return _caa_request(releasegroupid, entitytype="release-group")