def add_vpp_xml(xdoc)
      doc_root = xdoc.root
      vpp = doc_root.add_element 'vpp'
      vpp.add_element('assign_vpp_device_based_licenses').text = @assign_vpp_device_based_licenses
    end
def add_vpp_xml(xdoc)
      doc_root = xdoc.root
      vpp = doc_root.add_element 'vpp'
      vpp.add_element('assign_vpp_device_based_licenses').text = @assign_vpp_device_based_licenses
    end
Insert an appropriate vpp element into the XML for sending changes
 to the JSS

 @param xdoc[REXML::Document] The XML document to work with

 @return [void]