ZCML File
meta.zcml

<configure
    xmlns="http://namespaces.zope.org/zope"
    xmlns:meta="http://namespaces.zope.org/meta"
    >
<meta:directive
    namespace="http://namespaces.zope.org/renderer"
    name="renderer"
    schema=".metaconfigure.IRendererDirective"
    handler=".metaconfigure.renderer"
    />
</configure>