How about a variation on this :
# In site.pp, outside of any node definitions and below any top-scope 
variables: lookup('classes', Array[String], 'unique').include

Lose the “include” and you have :
$class_list = lookup('classes', Array[String], 'unique')
—————————————————————————————————-
"Sometimes I think the surest sign that intelligent life exists elsewhere in 
the universe is that none of it has tried to contact us."
Bill Waterson (Calvin & Hobbes)

> On Aug 7, 2019, at 9:48 PM, John Warburton <jwarbur...@gmail.com> wrote:
> 
> Hi Everyone
> 
> Back in the day of 2.x/3.x, I used to access the "classes" top scope variable 
> and dump into templates - like this.
> 
> I can't see to find the equivalent in puppet 6.x. Nothing in the built in 
> variables doc
> 
> Am I looking in the wrong place or do I have to try and access through the 
> internal API?
> 
> Thanks
> 
> John
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