anchor.diff:  
       /// A pickler/unpickler pair (PU) for int64s of the supplied endianness
       let private int64PUE endianness =
  -        FinalPU
  +        PU
               {
               Pickle = fun (i64, s) -> pickleHelper (PickleConvertors.convFromInt64 endianness) i64 s
               Unpickle = fun st -> unpickleHelper (PickleConvertors.convToInt64 endianness) st
  
positive.code: 
      /// A pickler/unpickler pair (PU) for uint64s of the supplied endianness
      let private uint64PUE endianness =
          FinalPU
              {
              Pickle = fun (i64, s) -> pickleHelper (PickleConvertors.convFromUInt64 endianness) i64 s
              Unpickle = fun st -> unpickleHelper (PickleConvertors.convToUInt64 endianness) st
  
negative.code: 
      /// A pickler/unpickler pair (PU) for uint16s of the supplied endianness
      let private uint16PUE endianness =
          PU
              {
              Pickle = fun (i16, s) -> pickleHelper (PickleConvertors.convFromUInt16 endianness) i16 s
              Unpickle = fun st -> unpickleHelper (PickleConvertors.convToUInt16 endianness) st
  