fourmolu-0.2.0.0: data/examples/declaration/value/function/comprehension/transform-multi-line4-four-out.hs

{-# LANGUAGE TransformListComp #-}

quux' xs ys =
    [ ( x
      , y
      )
    | x <- xs
    , y <- ys
    , then group by
        -- First comment
        ( x
            + y
        )
      using
        -- Second comment
        groupWith -- Third comment
    ]