objectClass ( 1.1.2.2.1
        NAME 'myPhotoObject'
        DESC 'mixin myPhoto'
        AUXILIARY
        MAY myPhoto )

objectClass ( 1.1.2.2.2
        NAME 'myPerson'
        DESC 'my person'
        MUST ( 'myUniqueName' $ 'givenName' )
        MAY 'myPhoto' )