|Transforms the document specified by <code>$input</code>, using the XSLT template specified by <code>$stylesheet</code>, and returns the result as <code>node()</code> instance. <code>$input</code> and <code>$stylesheet</code> can be specified as<br />
* <code>xs:string</code>, containing the path to the document,
* <code>xs:string</code>, containing the document itselfin its string representation, or
* <code>node()</code>, containing the actual document.
The <code>$params</code> argument can be used to bind variables to a stylesheet. It can be specified as