How to handle Assets (JS/CSS) with Phil's Template Library

[eluser]Unknown[/eluser]
[strike]So, how do you use it? Is there, like, documentation for this somewhere?

I'm getting an error:

Code:

Use of undefined constant APPPATH_URI - assumed 'APPPATH_URI'

I checked and APPPATH_URI doesn't seem to declared anywhere. Do I have to do that myself or something?

I know these seem like silly questions but I'm new to CI so if anyone could shed some light on this, it'd much appreciated.

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After much googling, it seems to be implied that the asset helper /has/ to be used together with Phil's template library.

Is this accurate? If so, is there a way around this?