ZCML File
meta.zcml

<configure
    xmlns="http://namespaces.zope.org/zope"
    xmlns:meta="http://namespaces.zope.org/meta"
    >
<meta:directives
    namespace="http://namespaces.zope.org/apidoc"
    >
<meta:directive
    name="moduleImport"
    schema=".metadirectives.IModuleImport"
    handler=".metaconfigure.moduleImport"
    />
<meta:directive
    name="rootModule"
    schema=".metadirectives.IRootModule"
    handler=".metaconfigure.rootModule"
    />
</meta:directives>
</configure>