Tezos_raw_protocol_004_Pt24m4xi.Vote_repr
type proposal = Tezos_protocol_environment_004_Pt24m4xi.Protocol_hash.t
a protocol change proposal
votes can be for, against or neutral. Neutral serves to count towards a quorum
val ballot_encoding :
ballot Tezos_protocol_environment_004_Pt24m4xi.Data_encoding.t