Partially process'ing Template::Toolkit templates

unlinker has asked for the wisdom of the Perl Monks concerning the following question:

Venerable Monks,

Is it possible to process a TT template so that only the INCLUDE (or the INSERT) directives are processed? For example if my template (say outer.tt) is :

Hi [% name %],

Some Text here....
[% INCLUDE inner.tt %]
Some more text here.....
[download]

and inner.tt is:

Product ID: [% product_id %]
[download]

I would like to generate the template string:

Hi [% name %],

Some Text here....
Product ID: [% product_id %]
Some more text here.....
[download]

so that only the INCLUDE directive is processed and a new template is generated?

Many Thanks...

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