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/zope"
    name="permission"
    schema=".zcml.IPermissionDirective"
    handler=".zcml.permission"
    />
<meta:directive
    namespace="http://namespaces.zope.org/zope"
    name="securityPolicy"
    schema=".zcml.ISecurityPolicyDirective"
    handler=".zcml.securityPolicy"
    />
<meta:directive
    namespace="http://namespaces.zope.org/meta"
    name="redefinePermission"
    schema=".zcml.IRedefinePermission"
    handler=".zcml.redefinePermission"
    />
</configure>