at_theme-1.4.1/at_core/templates/views/views-view-rss.html.twig

{#
/**
 * @file
 * Theme override for feed displays that use the RSS style.
 *
 * Available variables:
 * - link: The link to the feed (the view path).
 * - namespaces: The XML namespaces (added automatically).
 * - title: The title of the feed (as set in the view).
 * - description: The feed description (from feed settings).
 * - langcode: The language encoding.
 * - channel_elements: The formatted channel elements.
 * - items: The feed items themselves.
 *
 * @see template_preprocess_views_view_rss()
 */
#}
<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0" xml:base="{{ link }}"{{ namespaces }}>
  <channel>
    <title>{{ title }}</title>
    <link>{{ link }}</link>
    <description>{{ description }}</description>
    <language>{{ langcode }}</language>
    {{ channel_elements }}
    {{ items }}
  </channel>
</rss>