@Override
    public LoggingClientBuilder sampler(Sampler<? super ClientRequestContext> sampler) {
        return (LoggingClientBuilder) super.sampler(sampler);
    }
Returns a newly-created {@link LoggingClient} decorator based on the properties of this builder.
core/src/main/java/com/linecorp/armeria/client/logging/LoggingClientBuilder.java