---
source: einstellung_derive/src/test.rs
expression: formatted
---
/// --- input ---
#[derive(Config)]
struct ServerConfig {
#[config(made_up_flag = true)]
host: String,
}
/// --- output ---
::core::compile_error! {
"Unknown field: `made_up_flag`. Available values: `default`, `freezable`, `merge`, `partial`, `serde`, `subconfig`, `validate`"
}