old_contents: #   Copyright 2014 VMWare.
  #
  #   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.
  
  import logging
  
  from congressclient.common import utils
  
  LOG = logging.getLogger(__name__)
  
  DEFAULT_POLICY_API_VERSION = '1'
  API_VERSION_OPTION = 'os_policy_api_version'
  API_NAME = 'congressclient'
  API_VERSIONS = {
      '1': 'congressclient.v1.client.Client',
  }
  
  
  def make_client(instance):
      """Returns a congress service client."""
      congress_client = utils.get_client_class(
          API_NAME,
          instance._api_version[API_NAME],
          API_VERSIONS)
      LOG.debug('instantiating congress client: %s', congress_client)
      return congress_client(session=instance.session,
                             auth=None,
                             interface='publicURL',
                             service_type='policy',
                             region_name=instance._region_name)
  
  
  def build_option_parser(parser):
      """Hook to add global options."""
      parser.add_argument(
          '--os-policy-api-version',
          metavar='<policy-api-version>',
          default=utils.env(
              'OS_POLICY_API_VERSION',
              default=DEFAULT_POLICY_API_VERSION),
          help=('Policy API version, default=%s (Env: OS_POLICY_API_VERSION)' %
                DEFAULT_POLICY_API_VERSION))
      return parser
  
new_contents: #   Copyright 2014 VMWare.
  #
  #   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.
  
  """OpenStackClient plugin for Governance service."""
  
  import logging
  
  from congressclient.common import utils
  
  LOG = logging.getLogger(__name__)
  
  DEFAULT_POLICY_API_VERSION = '1'
  API_VERSION_OPTION = 'os_policy_api_version'
  API_NAME = 'congressclient'
  API_VERSIONS = {
      '1': 'congressclient.v1.client.Client',
  }
  
  
  def make_client(instance):
      """Returns a congress service client."""
      congress_client = utils.get_client_class(
          API_NAME,
          instance._api_version[API_NAME],
          API_VERSIONS)
      LOG.debug('instantiating congress client: %s', congress_client)
      return congress_client(session=instance.session,
                             auth=None,
                             interface='publicURL',
                             service_type='policy',
                             region_name=instance._region_name)
  
  
  def build_option_parser(parser):
      """Hook to add global options."""
      parser.add_argument(
          '--os-policy-api-version',
          metavar='<policy-api-version>',
          default=utils.env(
              'OS_POLICY_API_VERSION',
              default=DEFAULT_POLICY_API_VERSION),
          help=('Policy API version, default=%s (Env: OS_POLICY_API_VERSION)' %
                DEFAULT_POLICY_API_VERSION))
      return parser
  
subject: Add plug-in summary for osc doc