Are padding field names necessary?

[sprout42]

Is it necessary to have a field name for padding elements?

[tjdevries]

One might want to assert

assert len(MyMessage.pad_2) == 2

[tjdevries]

Not sure why exactly, but I could see it happening.

[sprout42]

The pad fields just return None when the element is "unpacked" currently. All the unpack function does is consume bytes.