app/views/admin/application/featured_image/_static.html.erb
<%
best_featured_image = about.best_featured_image
if best_featured_image&.attached?
%>
image:
id: "<%= best_featured_image.blob.id %>"
alt: "<%= about.best_featured_image_alt %>"
credit: >-
<%= prepare_html_for_static about.best_featured_image_credit %>
<% end %>