AnyDocsAnd
  [ AnyDocsOr []
  , AnyDocsSingle
      ConfDoc
        { confDocKeys =
            ( "foo" :| [ "bar" , "quux" ]
            , AnyOfSchema (NullSchema :| [ StringSchema ])
            ) :|
              []
        , confDocDefault = Nothing
        , confDocExamples = []
        , confDocHelp = Just "Example with sub-settings"
        }
  ]