template
fun HttpContext.template(templateEngine: TemplatePort, url: URL, context: Map<String, *> = emptyMap<String, Any>(), locale: Locale = obtainLocale(), headers: Headers = response.headers, cookies: List<Cookie> = response.cookies, attributes: Map<*, *> = this.attributes): HttpContext
fun HttpContext.template(url: URL, context: Map<String, *> = emptyMap<String, Any>(), locale: Locale = obtainLocale(), headers: Headers = response.headers, cookies: List<Cookie> = response.cookies, attributes: Map<*, *> = this.attributes): HttpContext