Class A

src/serde/tests.rs:30–40

    #[derive(PartialEq, Debug, Serialize, Deserialize)]
    struct A {
        i: i64,
        s: String,
        u: S,
        e: (),
        t: (bool, (u64, f32)),
        v: Vec<Option<bool>>,
        m: HashMap<u64, String>,
        #[serde(with = "serde_bytes")]
        b: Vec<u8>,
    }

    let a = A {
        i: 0x8000000000000000u64 as i64,