use serde::{Serialize, Deserialize};

#[derive(Serialize, Deserialize, Debug)]
struct Point { x: i32, y: i32, }

fn main() {
    let point = Point { x: 1, y: 2 };

    // Convert the Point to a JSON string.
    let j = serde_json::to_string(&point).unwrap();

    // Parse the JSON string as a Point.
    let p2: Point = serde_json::from_str(&j).unwrap();