Place {{Underconstruction}} at the top of the documentation page of any incomplete templates to warn potential users they may not function properly yet.
It also adds them to the Category:Underconstruction templates
{{Underconstruction}} gives

This is based on and requires the template:Ambox meta template.
It has a Icon & Standard message set.
Changing the message in the template will change it in every instance of the template on the Wiki.
The template is set to Categorize the pages it is used on.
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