  pairIORaw
  Pair:simple_function_c_pair
  RawImport PairIO
  Int -> Double -> Int -> EPair Int Double
  0: (Int, Double)
     slots 0..1: Int, Double
     slot 2: Int (RealWorld)
  Haskell: (Int, Double)
  raw: EPair Int Double
  vectorIORaw
  vectorIOSugar
  vectorIOSugar$raw
  NativeVector:builtin_function_vectorKonstNative
  RawImport VectorIO
  Int -> Int -> NativeVector Int -> Int -> NativeVector Double
  0: Vector Int
     slots 0..2: Int, Int, NativeVector Int
     slot 3: Int (RealWorld)
  Haskell: Vector Double
  raw: NativeVector Double
