use serde_derive::{Serialize,Deserialize};
use std::env::args;
use std::fs::File;
use std::io::prelude::*;

#[derive(Serialize,Deserialize,Debug)]
struct User<'a>
{
    id: u32,
    name: &'a str,

}

#[derive(Serialize,Deserialize,Debug)]
struct UserList<'a:>
{
    #[serde(borrow)]
    users: Vec<User<'a>>
}

fn main()
{
    // let arg: Vec<_> = args().collect();
    // let mut content = String::new();
    // let filename = &arg[1];
    // File::open(&filename).unwrap().read_to_string(&mut content).unwrap();
}