anchor.diff:  ## Pickler primitives
   *)
   
  -let intPickler = BinaryPickler.pickleInt32
  +let intPickler = BinaryPickler.intPU
   
  -let floatPickler = BinaryPickler.pickleFloat
  +let floatPickler = BinaryPickler.float32PU
   
  -let asciiPickler = BinaryPickler.pickleAscii
  +let asciiPickler = BinaryPickler.asciiPU
   
   (**
   
  
positive.code: let complexPickler = 
      BinaryPickler.list 
          (BinaryPickler.tuple3 
              BinaryPickler.pickleAscii BinaryPickler.pickleFloat BinaryPickler.pickleInt32)
negative.code: 
  /// A pickler/unpickler pair for products
  let productPickler =
      let nameDecPickler = BinaryPickler.tuple2 BinaryPickler.utf8PU BinaryPickler.decimalPU
      let toProd (name,price) = {ProductName = name; ProductPrice = price*1.0M<GBP>} // tuple to product
      let fromProd prod = prod.ProductName, decimal prod.ProductPrice // product to tuple
      BinaryPickler.wrap (toProd, fromProd) nameDecPickler
  