@UnstableApi
    static CircuitBreakerRule onTimeoutException() {
        return builder().onTimeoutException().thenFailure();
    }
Returns a newly created {@link CircuitBreakerRule} that will report a {@link Response} as a failure,
if a {@link TimeoutException} is raised.
core/src/main/java/com/linecorp/armeria/client/circuitbreaker/CircuitBreakerRule.java