:set -XPolyKinds
import GHC.Exts

putStrLn "-fno-print-explicit-runtime-reps"
:set -fno-print-explicit-runtime-reps
:type ($)
:info ($)
:kind TYPE
:type error
:info error

putStrLn "\n-fprint-explicit-runtime-reps"
:set -fprint-explicit-runtime-reps
:type ($)
:info ($)
:kind TYPE
:type error
:info error