extern crate serde; // 1.0.84
#[macro_use]
extern crate serde_derive; // 1.0.84
extern crate serde_json; // 1.0.34


#[derive(Debug, Serialize, Deserialize)]
struct Inner {
    b: bool,
    i: u32,
}
#[derive(Debug, Serialize, Deserialize)]
struct Outer {
    b: bool,
    #[serde(flatten)]
    inner: Inner,
    f: f32,
}

fn main() {
    let value = Outer {
        b: true,
        inner: Inner { b: false, i: 42 },
        f: 3.14,
    };
    let json = serde_json::to_string_pretty(&value).unwrap();
    println!("JSON: {}", json);

    let val: Outer = serde_json::from_str(&json).unwrap();
    println!("Struct: {:#?}", val);
}