Input for updating a guideline document page. Omitted fields are left unchanged.
The ID of the guideline document page to update.
Language code the title is written in. Only meaningful together with title. Omit it (or pass the default language) to update the base title; pass a non-default language to update that translation.
The new title of the document page.
The new heading of the document page.
The new subheading of the document page.