The template directive is supplied by the template plugin.

Templates are files that can be filled out and inserted into pages in the wiki, by using the template directive. The directive has an id parameter that identifies the template to use. The remaining parameters are used to fill out the template.

Example:

[[!template  id=note text="""Here is the text to insert into my note."""]]

This fills out the note template, filling in the text field with the specified value, and inserts the result into the page.

For a list of available templates, and details about how to create more, see the templates page.