static ArmeriaHttpClientParser get() {
        return INSTANCE;
    }
Default implementation of {@link HttpRequestParser} and {@link HttpResponseParser} for clients.
This parser adds some custom tags and overwrites the name of span if {@link RequestLog#requestContent()}
is {@link RpcRequest}.
The following tags become available:
<ul>
  <li>http.url</li>
  <li>http.host</li>
  <li>http.protocol</li>
  <li>http.serfmt</li>
  <li>address.remote</li>
  <li>address.local</li>
</ul>
brave/brave6/src/main/java/com/linecorp/armeria/client/brave/ArmeriaHttpClientParser.java