public ContentPreviewerFactoryBuilder binary(
            BiPredicate<? super RequestContext, ? super HttpHeaders> predicate) {
        return binary(hexDumpProducer(), predicate);
    }
Sets the specified {@link BiPredicate} to produce the
<a href="http://en.wikipedia.org/wiki/Hex_dump">hex dump</a> preview when the predicate
returns {@code true}.
core/src/main/java/com/linecorp/armeria/common/logging/ContentPreviewerFactoryBuilder.java