text: import icemac.addressbook.generations.utils
  import icemac.addressbook.interfaces
  import zope.annotation.interfaces
  import zope.component
  import zope.interface
  import zope.location
  
  
  @icemac.addressbook.generations.utils.evolve_addressbooks
  def evolve(ab):
      """Update order storage to make it metadata aware."""
      os = zope.component.getUtility(
          icemac.addressbook.interfaces.IOrderStorage)
      for ns in os.namespaces():
          storage = os.byNamespace(ns)
          zope.interface.alsoProvides(
              storage, zope.annotation.interfaces.IAttributeAnnotatable)
          zope.location.locate(storage, os._storage, ns)
  