(
  (if true 1 else (), 2, "a", "b", 3, "c", 12.5),
  (
    // why is this RTL instead of LTR???? (starts with float)
    (a, b, c, d, e, f, g) -> {
      (a, b, e).sum
      (a, b, e, g).sum
      (c, d, f).concat
    }
    x -> 1
  )
).try