Function authorize

pub fn authorize<S: BuildHasher>(
    vote_account: &mut BorrowedAccount<'_>,
    authorized: &Pubkey,
    vote_authorize: VoteAuthorize,
    signers: &HashSet<Pubkey, S>,
    clock: &Clock,
    feature_set: &FeatureSet,
) -> Result<(), InstructionError>

Authorize the given pubkey to withdraw or sign votes. This may be called multiple times, but will implicitly withdraw authorization from the previously authorized key