Your `server` is `AsyncSocket`. You can pass `port = Port(9000)` too.
Nim is style agnostic.
`bindAddr(server, Port(9000))` will work too.
echo "a"
echo("b")
echo"c"
"d".echo
"e".echo()
Run
Nim has
[UFCS.](https://nim-lang.github.io/Nim/manual.html#procedures-method-call-syntax)
