# tag|record|size|alignment, then base/field entries
RECORD|orbit::Handle|8|8
FIELD|orbit::Handle|value_|0|8
RECORD|orbit::Session|24|8
BASE|orbit::Session|orbit::Handle|0
FIELD|orbit::Session|state_|8|4
FIELD|orbit::Session|flags_|12|4
FIELD|orbit::Session|context_|16|8
