* feat: Added HTTP method+path to JavaDocs in kotlin OkHTTP client * feat: Added HTTP method+path to JavaDocs in kotlin Ktor client * feat: Added HTTP method+path to JavaDocs in kotlin retrofit2 client * feat: Added HTTP method+path to JavaDocs in kotlin vertex client * feat: Added HTTP method+path to JavaDocs in kotlin volley client
* feat(issue-20231): add echo_api client for kotlin okhttp * build(issue-20231): sync files