-- | Our reverse-compare function.
pmCompare :: (Key, Elem) -> (Key, Elem) -> Ordering
-- | Our reverse-compare function.
pmCompare :: (Key, Elem) -> (Key, Elem) -> Ordering
-- | Add or update (via a custom function) an element.
addWith :: (Elem -> Elem -> Elem) -> Key -> Elem -> PeerMap -> PeerMap
-- | Add or update (via a custom function) an element.
addWith :: (Elem -> Elem -> Elem) -> Key -> Elem -> PeerMap -> PeerMap