code: public void installationTemplate_POST(String baseTemplateName, OvhTemplateOsLanguageEnum defaultLanguage, String name) throws IOException {
  		String qPath = "/me/installationTemplate";
  		StringBuilder sb = path(qPath);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "baseTemplateName", baseTemplateName);
  		addBody(o, "defaultLanguage", defaultLanguage);
  		addBody(o, "name", name);
  		exec(qPath, "POST", sb.toString(), o);
  	}
docs: Create a template
  
  REST: POST /me/installationTemplate
  @param baseTemplateName [required] OVH template name yours will be based on, choose one among the list given by compatibleTemplates function
  @param defaultLanguage [required]
  @param name [required] Your template name