{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"$(impl<'tcx,"}]}
        $(impl<'tcx, K: IntoQueryParam<$($K)*> + Copy> TyCtxtFeed<'tcx, K> {
    ($($(#[$attr:meta])* [$($modifiers:tt)*] fn $name:ident($($K:tt)*) -> $V:ty,)*) => {
            $(#[$attr])*