Zotero Integration – Import Templates?

Does anybody know how to add the file creation date to a zotero integration template, i.e. code that corresponds to the following in templater:


date created: <%tp.file.creation_date()%>

It appears the closest I can come to this is using something like

date created: {{importDate | format("YYYY-MM-DD HH:mm")}}

But the problem with that is that it will get overwriten every time the template is executed (while I want to persist the date when the note was first created).