public RetryConfigBuilder<T> responseTimeoutForEachAttempt(Duration responseTimeoutMillisForEachAttempt) {
        final long millis =
                requireNonNull(responseTimeoutMillisForEachAttempt, "responseTimeoutMillisForEachAttempt")
                        .toMillis();
        checkArgument(
                millis >= 0,
                "responseTimeoutForEachAttempt.toMillis(): %s (expected: >= 0)",
                millis);
        this.responseTimeoutMillisForEachAttempt = millis;
        return this;
    }
Sets the specified {@link Duration} by converting responseTimeoutForEachAttempt to millis.
core/src/main/java/com/linecorp/armeria/client/retry/RetryConfigBuilder.java