map -package:base -is:exact -is:exact -package:case-insensitive -package:text -package:ghc -package:bytestring is:module -package:dhall -package:relude -package:non-empty package:rio

Strict Map. Import as:
import qualified RIO.Map as Map
This module does not export any partial or unchecked functions. For those, see RIO.Map.Partial and RIO.Map.Unchecked
Strict Map with hashed keys. Import as:
import qualified RIO.HashMap as HM
This module does not export any partial functions. For those, see RIO.HashMap.Partial