{"ast_node_type":"variable","tokens":[{"end":28,"kind":"keyword","start":0,"text":"let"}]}
        let unsafe_arg_new =
            self.alloc_expr_desugared(unsafe_arg_new.map_or(Expr::Missing, Expr::Path));
            self.alloc_expr_desugared(Expr::Call { callee: unsafe_arg_new, args: Box::default() });