问如何将视图返回的xml文档分解到请求客户端？

EN

<configure
      xmlns="http://namespaces.zope.org/zope"
      xmlns:browser="http://namespaces.zope.org/browser">

    <browser:page
          for="*"
          permission="zope2.View"
          class=".views.MyViewReturningXML"
          name="my_view.xml"
          />
</configure>

from Products.Five.browser import BrowserView
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile


class MyViewReturningXML(BrowserView):

    template = ViewPageTemplateFile("my_template.xml")

    def __call__(self):

        # Set header
        self.request.RESPONSE.setHeader("Content-type", "text/xml")

        return self.template()

    #...
    #IMPLEMENTATION
    #....