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