#[derive(serde_derive::Serialize, serde_derive::Deserialize)]
#[serde(tag = "mode", content = "config")]
enum Example1 {
    Bib(u32),
    Bap(String),
}

#[derive(serde_derive::Serialize, serde_derive::Deserialize)]
enum Example2 {
    Bib(u32),
    Bap(String),
}

fn main() {
    println!("{}", serde_json::to_string(&Example1::Bib(1)).unwrap());
    println!("{}", serde_json::to_string(&Example2::Bib(1)).unwrap());
}