[Zope] can I "print" REQUEST.form?

[Panos Hilaris]

I have a REQUEST object.

<dtml-var REQUEST> in a document gives the contents fine.  In the 
REQUEST "printout" there is a form part.

How can I see the form only?  I tried:
<dtml-var REQUEST.form>
but I get a KeyError.

TIA,
Panos Hilaris