-- | Whether the stack uses custom cookbooks.
usUseCustomCookbooks :: Lens' UpdateStack (Maybe Bool)
usUseCustomCookbooks =
    lens _usUseCustomCookbooks (\s a -> s { _usUseCustomCookbooks = a })
usUseCustomCookbooks :: Lens' UpdateStack (Maybe Bool)
usUseCustomCookbooks =
    lens _usUseCustomCookbooks (\s a -> s { _usUseCustomCookbooks = a })
usUseCustomCookbooks =
    lens _usUseCustomCookbooks (\s a -> s { _usUseCustomCookbooks = a })