{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"$(,"}]}
        $(, @eval_always = $eval_always:literal)?
        $(#[$attr:meta])* $vis:vis $tool:ident ::$NAME:ident, $Level: ident, $desc: expr
        $(, @feature_gate = $gate:ident;)?