anchor.diff:      } else if (value < two16) {
         // Uint16
         _out.putByte((type | 25));
  -      typed.Uint16Buffer buff = new typed.Uint16Buffer(1);
  +      final typed.Uint16Buffer buff = new typed.Uint16Buffer(1);
         buff[0] = value;
  -      Uint8List ulist = new Uint8List.view(buff.buffer);
  -      typed.Uint8Buffer data = new typed.Uint8Buffer();
  +      final Uint8List ulist = new Uint8List.view(buff.buffer);
  +      final typed.Uint8Buffer data = new typed.Uint8Buffer();
         data.addAll(ulist
             .toList()
             .reversed);
  
positive.code:     } else if (value < two32) {
        // Uint32
        _out.putByte((type | 26));
        typed.Uint32Buffer buff = new typed.Uint32Buffer(1);
        buff[0] = value;
        Uint8List ulist = new Uint8List.view(buff.buffer);
        typed.Uint8Buffer data = new typed.Uint8Buffer();
        data.addAll(ulist
            .toList()
            .reversed);
  
negative.code:     } else {
        // Uint64
        _out.putByte((type | 27));
        final typed.Uint64Buffer buff = new typed.Uint64Buffer(1);
        buff[0] = value;
        final Uint8List ulist = new Uint8List.view(buff.buffer);
        final typed.Uint8Buffer data = new typed.Uint8Buffer();
        data.addAll(ulist
            .toList()
            .reversed);
  