{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"///"}]}
        /// it more likely the appropriate visit call will be added for it.
        /// enums. This will result in a compile error if a field is added, which makes
        pub trait $Visitor<$($lt)?> : Sized $(${ignore($mut)} + MutVisitorResult<Result = ()>)? {