ZaWertun

#!/usr/bin/python3
"""
Copyright 2021 Mygod

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

ZaWertun

#![allow(unused_must_use)]

extern crate sync;

// str op trait
use std::str::StrSlice;
// for tcp listen
use std::io::{TcpListener, TcpStream};
use std::io::net::ip::SocketAddr;
// for trait