{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"require_c_abi_if_c_variadic(tcx,"}]}
                        require_c_abi_if_c_variadic(tcx, sig.decl, abi, item.span);
                        let hir::ForeignItemKind::Fn(sig, ..) = item.kind else { bug!() };
                    }