pub fn write_frame(
rpc_type: u8,
payload: &[u8],
out: &mut Vec<u8>,
) -> Result<()>Expand description
Write a framed v3 header + payload into out.
rpc_type is the discriminant byte; payload is the already-serialized
body. The current cluster epoch (read from
current_local_cluster_epoch) is stamped into the header.