old_contents: #
  # A collection of shared functions for managing help flag mapping files.
  #
  # 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.
  #
  """Hooks to handle configuration options not handled on module import or with a
  call to _register_runtime_opts(). The HOOKS dict associate hook functions with
  a module path."""
  
  
  def keystone_config():
      from keystone.common import config
  
      config.configure()
  
  
  def glance_store_config():
      try:
          import glance_store
          from oslo.config import cfg
  
          glance_store.backend.register_opts(cfg.CONF)
      except ImportError:
          # glance_store is not available before Juno
          pass
  
  
  HOOKS = {'keystone.common.config': keystone_config,
           'glance.common.config': glance_store_config}
  
new_contents: #
  # A collection of shared functions for managing help flag mapping files.
  #
  # 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.
  #
  """Hooks to handle configuration options not handled on module import or with a
  call to _register_runtime_opts(). The HOOKS dict associate hook functions with
  a module path."""
  
  
  def keystone_config():
      from keystone.common import config
  
      config.configure()
  
  
  def glance_store_config():
      try:
          import glance_store
          from oslo.config import cfg
  
          glance_store.backend.register_opts(cfg.CONF)
      except ImportError:
          # glance_store is not available before Juno
          pass
  
  
  def nova_spice():
      import nova.cmd.spicehtml5proxy  # noqa
  
  
  HOOKS = {'keystone.common.config': keystone_config,
           'glance.common.config': glance_store_config,
           'nova.spice': nova_spice}
  
subject: Add a hook for nova.cmd.spicehtml5proxy