setInsertList :: IsSet set => [ElemOf set] -> set -> set
setInsertList keys set = foldl' (flip setInsert) set keys
setInsertList :: IsSet set => [ElemOf set] -> set -> set
setInsertList keys set = foldl' (flip setInsert) set keys
setInsertList keys set = foldl' (flip setInsert) set keys