public CacheControlBuilder maxAgeSeconds(long maxAgeSeconds) {
        this.maxAgeSeconds = validateSeconds(maxAgeSeconds, "maxAgeSeconds");
        return this;
    }
Enables the {@code "max-age"} directive.

@param maxAgeSeconds the value in seconds.
core/src/main/java/com/linecorp/armeria/common/CacheControlBuilder.java