text: # Copyright 2015 Hewlett-Packard Development Company, L.P.
  #
  # Author: Kiall Mac Innes <kiall@hp.com>
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  #
  # This is a placeholder for Kilo backports.
  # Do not use this number for new Liberty work. New Liberty work starts after
  # all the placeholders.
  #
  # See https://blueprints.launchpad.net/nova/+spec/backportable-db-migrations
  # http://lists.openstack.org/pipermail/openstack-dev/2013-March/006827.html
  
  
  def upgrade(migrate_engine):
      pass
  
  
  def downgrade(migration_engine):
      pass
  