CPI xslt change header property

<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

xmlns:cpi="http://sap.com/it/" exclude-result-prefixes="cpi" version="2.0"> 

 <!-- include exchange parameter -->

  <xsl:param name="exchange"/>

       <xsl:param name="Param1"/>

       <xsl:param name="Param3"/>

    <xsl:output method="xml" encoding="UTF-8" indent="no" />

    <xsl:template match="/">

        

        <xsl:value-of select="hci:setProperty($exchange, 'Param2', $Param1)"/>

         <xsl:value-of select="hci:setProperty($exchange, 'Param3', '222222')"/>

        <xsl:value-of select="hci:setHeader($exchange, 'Param1', '1234567890')"/>

        <Test1/>

    </xsl:template>

</xsl:stylesheet>