{"ast_node_type":"function","tokens":[{"end":88,"kind":"keyword","start":0,"text":"($($(#[$attr:meta])*"}]}
    ($($(#[$attr:meta])* [$($modifiers:tt)*] fn $name:ident($($K:tt)*) -> $V:ty,)*) => {
macro_rules! define_feedable {
        $(impl<'tcx, K: IntoQueryParam<$($K)*> + Copy> TyCtxtFeed<'tcx, K> {