old_contents: # Licensed to the Apache Software Foundation (ASF) under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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.
  
  from libcloud.compute.types import Provider
  from libcloud.compute.providers import get_driver
  
  EC2 = get_driver(Provider.EC2)
  Rackspace = get_driver(Provider.RACKSPACE)
  
  drivers = [EC2('access key id', 'secret key', region='us-east-1'),
             Rackspace('username', 'api key', region='iad')]
  
  nodes = []
  for driver in drivers:
      nodes.extend(driver.list_nodes())
  
  print(nodes)
  # [ <Node: provider=Amazon, status=RUNNING, name=bob, ip=1.2.3.4.5>,
  # <Node: provider=Rackspace, status=REBOOT, name=korine, ip=6.7.8.9.10>, ... ]
  
  # grab the node named "test"
  node = [n for n in nodes if n.name == 'test'][0]
  
  # reboot "test"
  node.reboot()
  
new_contents: # Licensed to the Apache Software Foundation (ASF) under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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.
  
  from libcloud.compute.types import Provider
  from libcloud.compute.providers import get_driver
  
  from libcloud.compute.drivers.ec2 import EC2NodeDriver
  from libcloud.compute.drivers.rackspace import RackspaceNodeDriver
  
  from typing import Type, cast
  
  ec2_cls = get_driver(Provider.EC2)
  rackspace_cls = get_driver(Provider.RACKSPACE)
  
  # NOTE: If you are using driver methods which are not part of the standard API,
  # you need to explicitly cast the driver class reference to the correct class
  # for type checking to work correctly
  EC2 = cast(Type[EC2NodeDriver], ec2_cls)
  Rackspace = cast(Type[RackspaceNodeDriver], rackspace_cls)
  
  drivers = [EC2('access key id', 'secret key', region='us-east-1'),
             Rackspace('username', 'api key', region='iad')]
  
  nodes = []
  for driver in drivers:
      nodes.extend(driver.list_nodes())
  
  print(nodes)
  # [ <Node: provider=Amazon, status=RUNNING, name=bob, ip=1.2.3.4.5>,
  # <Node: provider=Rackspace, status=REBOOT, name=korine, ip=6.7.8.9.10>, ... ]
  
  # grab the node named "test"
  node = [n for n in nodes if n.name == 'test'][0]
  
  # reboot "test"
  node.reboot()
  
subject: Update an example so mypy type checking works for non standard API methods.