usCustomCookbooksSource :: Lens' UpdateStack (Maybe Source)
usCustomCookbooksSource =
    lens _usCustomCookbooksSource (\s a -> s { _usCustomCookbooksSource = a })
usCustomCookbooksSource :: Lens' UpdateStack (Maybe Source)
usCustomCookbooksSource =
    lens _usCustomCookbooksSource (\s a -> s { _usCustomCookbooksSource = a })
usCustomCookbooksSource =
    lens _usCustomCookbooksSource (\s a -> s { _usCustomCookbooksSource = a })