{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"for"}]}
                    for inner_ty in arg_ty.walk().filter_map(|arg| arg.as_type()) {
                    let arg_ty = args[0].node.ty(self.body, self.tcx);
                        if let Some((fn_id, fn_args)) = FunctionItemRefChecker::is_fn_ref(inner_ty)