ZCML File
configure.zcml

<configure
    xmlns="http://namespaces.zope.org/zope"
    >
<class
    class=".broken.Broken"
    >
<allow
    interface="zope.annotation.interfaces.IAnnotations"
    />
<allow
    attributes="__module__"
    />
</class>
<subscriber
    handler=".broken.installBroken"
    for="zope.app.appsetup.IDatabaseOpenedEvent"
    />
<include
    file="browser.zcml"
    />
</configure>