elemUDFM :: Uniquable key => key -> UniqDFM elt -> Bool
elemUDFM k (UDFM m _i) = M.member (getKey $ getUnique k) m
elemUDFM :: Uniquable key => key -> UniqDFM elt -> Bool
elemUDFM k (UDFM m _i) = M.member (getKey $ getUnique k) m
elemUDFM k (UDFM m _i) = M.member (getKey $ getUnique k) m