{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"impl_visitable!(|&$lt"}]}
            impl_visitable!(|&$lt self: $ty, visitor: &mut V, extra: ($($extra_ty)?)| {
        $(fn $method(&mut self, node: &$lt $ty $(, $extra_name:$extra_ty)?) -> Self::Result {
                let ($($extra_name)?) = extra;