Handlebars Javascript https://handlebarsjs.com/installation/#npm-or-yarn-recommended https://jknack.github.io/handlebars.java/gettingStarted.html https://github.com/wiremock/wiremock/blob/2cc9225da9672ca918ef2cc7bacd53a32e065cb4/src/main/java/com/github/tomakehurst/wiremock/extension/responsetemplating/TemplateEngine.java#L49