The compiled form of an xsl:result-document element in the stylesheet.
The xsl:result-document element takes an attribute href="filename". The filename will often contain parameters, e.g. {position()} to ensure that a different file is produced for each element instance.
There is a further attribute "format" which determines the format of the output file, it identifies the name of an xsl:output element containing the output format details. In addition, individual serialization properties may be specified as attributes. These are attribute value templates, so they may need to be computed at run-time.