error: no rules expected the token `history_impl`
  --> tests/api/ui/deprecated-without-added.rs:3:21
   |
3  |   const _: Metadata = metadata! {
   |  _____________________^
4  | |     method: GET,
5  | |     rate_limited: false,
6  | |     authentication: None,
...  |
10 | |     }
11 | | };
   | |_^ no rules expected this token in macro call
   |
note: while trying to match `field`
  --> src/api.rs
   |
   |     ( @field method: $method:ident ) => { $crate::exports::http::Method::$method };
   |        ^^^^^
   = note: this error originates in the macro `$crate::metadata` which comes from the expansion of the macro `metadata` (in Nightly builds, run with -Z macro-backtrace for more info)