pub fn do_process_vote_state_update(
vote_state: &mut VoteState,
slot_hashes: &[SlotHash],
epoch: u64,
vote_state_update: VoteStateUpdate,
feature_set: Option<&FeatureSet>
) -> Result<(), VoteError>
pub fn do_process_vote_state_update(
vote_state: &mut VoteState,
slot_hashes: &[SlotHash],
epoch: u64,
vote_state_update: VoteStateUpdate,
feature_set: Option<&FeatureSet>
) -> Result<(), VoteError>