'Return the Cover Art Archive and Cover Art Archive release group URLs
using album MusicBrainz release ID and release group ID.'

def get(self, album, plugin, paths):

    if album.mb_albumid:
        (yield self._candidate(url=self.URL.format(mbid=album.mb_albumid), match=Candidate.MATCH_EXACT))
    if album.mb_releasegroupid:
        (yield self._candidate(url=self.GROUP_URL.format(mbid=album.mb_releasegroupid), match=Candidate.MATCH_FALLBACK))
