Thanks, if you meant the TCP read/write, that depends on your languages implementation but usually it is always like that.
Regarding the message exchange, the contract is defined by your application.
imo It's a common mistake for people to think that something was made by one team or person, when in reality things like the lightbulb were incrementally improved and evolved by many different people working separately. It's a harder story to remember and 'sell'...
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