-- | The configuration manager. When you clone a stack we recommend that you use
-- the configuration manager to specify the Chef version, 0.9, 11.4, or 11.10.
-- The default value is currently 11.4.
usConfigurationManager :: Lens' UpdateStack (Maybe StackConfigurationManager)
usConfigurationManager =
    lens _usConfigurationManager (\s a -> s { _usConfigurationManager = a })
usConfigurationManager :: Lens' UpdateStack (Maybe StackConfigurationManager)
usConfigurationManager =
    lens _usConfigurationManager (\s a -> s { _usConfigurationManager = a })
usConfigurationManager =
    lens _usConfigurationManager (\s a -> s { _usConfigurationManager = a })