type PREFIXBar* = object
  a: int32

type PREFIXFoo* = object
  a: int32
  b: uint32
  bar: PREFIXBar

const PREFIXVAL* = PREFIXFoo(a: 42, b: 1337, bar: PREFIXBar(a: 323))

proc root*(x: PREFIXFoo) {.importc: "root".}