It is possible to specify the documents' data directly as XML instead than using an external file, e.g. importing:
<root>
<document id="doc001" name="my document">
<xml mime="application/x-teradp-gn4">
<Page>
<Layers>
<LayerContent>. . .</LayerContent>
</Layers>
</Page>
</xml>
</document>
</root>
will create a document with the specified XML content as its data.
The 'mime' attribute is optional - if not specified the workflow assumes 'application/xml'.
Similarly it is possible to specify the stories' text directly as XML, e.g.
<root>
<story id="story0001" name="my story">
<xml>
<p>First paragraph</p>
<p>Second paragraph</p>
</xml>
</story>
</root>
See also