Can I use <xsl:attribute-set/> to set attribute value from the source XM

Hi
 
I would like to use <xsl:copy> to copy some XML elements that have the same
name and attributes. I checked out xsl:copy and seems to do the work. But
the problem is that the attribute sets that I've seen only set default
values. Can I use attribute-sets like this:
 
<xsl:attribute-set name="test">
  <xsl:attribute name="size"></xsl:value-of value="@size"/></xsl:attribute>
  <xsl:attribute name="high"></xsl:value-of value="@high"/></xsl:attribute>
  <xsl:attribute name="low"></xsl:value-of value="@low"/></xsl:attribute>
</xsl:attribute-set>

<xsl:copy use-attribute-set="test"/>
 
Regards,
 
Néstor Boscán