[web2py] request.files.append syntax

[Andrew Thompson]

I can't seem to find where this function is defined, so I can't figure 
out if it accepts more variables.

Specifically, I'm trying to recreate the 'media' descriptor below:
<link rel="stylesheet" type="text/css" href="print.css 
<https://teros.gocyber.com/v2/static/css/print.css>" media="print" />

Does request.files.append take any more parameters?
Or, where can I find it documented?

Thanks.

--
Andrew Thompson
http://aktzero.com/