pub fn encode(msg: &Message) -> Vec<u8> ⓘExpand description
Encode a Message as a RESP2 multi-bulk array.
Numeric fields ride as decimal bulk strings — matches kevy-
replicate’s REPLICATE FROM <offset> ID <id> handshake
convention. Pre-sized: every message ≤ 6 fields ≤ 32 bytes
each, so a 256-byte buffer suffices for every variant.