T13035.hs:144:28: warning: [-Wpartial-type-signatures (in -Wdefault)]
    • Found type wildcard ‘_’ standing for ‘'[ 'Author] :: [Fields]’
    • In the second argument of ‘MyRec’, namely ‘_’
      In the type ‘MyRec RecipeFormatter _’
      In the type signature: g :: MyRec RecipeFormatter _