old_contents: # Copyright (c) 2016 Canonical Ltd
  #
  #    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.
  from pylxd.operation import Operation
  
  
  class Waitable(object):
  
      def get_operation(self, operation_id):
          return Operation.get(self._client, operation_id)
  
      def wait_for_operation(self, operation_id):
          operation = Operation.get(self._client, operation_id)
          operation.wait()
          return operation
  
  
  class Marshallable(object):
  
      def marshall(self):
          marshalled = {}
          for name in self.__slots__:
              if name.startswith('_'):
                  continue
              marshalled[name] = getattr(self, name)
          return marshalled
  
new_contents: # Copyright (c) 2016 Canonical Ltd
  #
  #    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.
  from pylxd.operation import Operation
  
  
  class Waitable(object):
  
      def wait_for_operation(self, operation_id):
          operation = Operation.get(self._client, operation_id)
          operation.wait()
          return operation
  
  
  class Marshallable(object):
  
      def marshall(self):
          marshalled = {}
          for name in self.__slots__:
              if name.startswith('_'):
                  continue
              marshalled[name] = getattr(self, name)
          return marshalled
  
subject: Remove Waitable.get_operation