{"ast_node_type":"function","tokens":[{"end":94,"kind":"keyword","start":0,"text":"fn"}]}
    fn check_trait_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::TraitItem<'tcx>) {
impl<'tcx> LateLintPass<'tcx> for AsyncFnInTrait {
        if let hir::TraitItemKind::Fn(sig, body) = item.kind