{"ast_node_type":"other","tokens":[{"end":24,"kind":"keyword","start":0,"text":"match"}]}
            match kind {
        pub fn walk_fn<$($lt,)? V: $Visitor$(<$lt>)?>(vis: &mut V, kind: FnKind<$($lt)? $(${ignore($mut)} '_)?>) -> V::Result {
                FnKind::Fn(