THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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"Extension X" is a MsgPack extension type (up to 128 extension types are allowed).
All messages, request and response, except handshake, start with unsigned integer
message length (excluding the length itself). Any MsgPack integer type can be used, so that shorter messages use smaller type to encode length. Empty message will be single 0 byte.
positive fixint / uint8 / uint16 / uint32 / uint64 | Length of Payload |
... | Payload |
TODO: Magic word, features as map
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