static <T extends Response> RetryRuleWithContent<T> onStatus(Iterable<HttpStatus> statuses,
                                                                 Backoff backoff) {
        return RetryRuleWithContent.<T>builder().onStatus(statuses).thenBackoff(backoff);
    }
Returns a newly created {@link RetryRuleWithContent} that will retry with the specified {@link Backoff}
if the response status is one of the specified {@link HttpStatus}es.
core/src/main/java/com/linecorp/armeria/client/retry/RetryRuleWithContent.java