wp_attachment_caption()
Twig function of the framework; its result is HTML and is printed without escaping.
The caption of an attachment, as returned by wp_get_attachment_caption().
The caption is returned as stored: it may contain HTML, which WordPress
filters with kses when a user without the unfiltered_html capability
saves it (like the caption of the core image block). The output is HTML
and is printed unescaped. Returns '' if the ID is null or the
attachment does not exist.
Returns string