{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"let"}]}
                let fields = e.fields().map(|it| it.as_name()).collect();
                let container = self.lower_type_ref_opt_disallow_impl_trait(e.ty());
                self.alloc_expr(Expr::OffsetOf(OffsetOf { container, fields }), syntax_ptr)