getSysvarClockEncoder
Returns an encoder that you can use to encode a SysvarClock to a byte array representing
the Clock sysvar's account data.
Returns
FixedSizeEncoder<Readonly<{
epoch: bigint;
epochStartTimestamp: UnixTimestamp;
leaderScheduleEpoch: bigint;
slot: bigint;
unixTimestamp: UnixTimestamp;
}>, 40>