The contents of each variant don't really matter here. The tag represents the variant, not the type contained inside of it. The Serde equivalent here would be:

The contents of each variant don't really matter here. The tag represents the variant, not the type contained inside of it. The Serde equivalent here would be: #[derive(Serialize, Deserialize)] #[serde(rename_all = "camelCase")] pub enum Response { Success(serde_json::Value), Error(serde_json::Value), }