class _Nodes(IsDescription): seqid = UInt8Col() start = UInt32Col() stop = UInt32Col()
class Vote(IsDescription): id = Int32Col() post_id = Int32Col() vote_type_id = UInt8Col() creation_date = Time32Col()
class Event(IsDescription): id = Int32Col() timestamp = Time32Col() event_type = UInt8Col() event_id = Int32Col()
class TimestampedZeoDesc(IsDescription): timestamp = UInt32Col() timestamp_subsec = Float32Col() version = UInt8Col()