-- | The stack\'s host name theme, with spaces replaced by underscores. The
-- theme is used to generate host names for the stack\'s instances. By
-- default, 'HostnameTheme' is set to 'Layer_Dependent', which creates host
-- names by appending integers to the layer\'s short name. The other themes
-- are:
--
-- -   'Baked_Goods'
-- -   'Clouds'
-- -   'Europe_Cities'
-- -   'Fruits'
-- -   'Greek_Deities'
-- -   'Legendary_creatures_from_Japan'
-- -   'Planets_and_Moons'
-- -   'Roman_Deities'
-- -   'Scottish_Islands'
-- -   'US_Cities'
-- -   'Wild_Cats'
--
-- To obtain a generated host name, call 'GetHostNameSuggestion', which
-- returns a host name based on the current theme.
csHostnameTheme :: Lens' CreateStack (Maybe Text)
csHostnameTheme = lens _csHostnameTheme (\ s a -> s{_csHostnameTheme = a})
csHostnameTheme :: Lens' CreateStack (Maybe Text)
csHostnameTheme = lens _csHostnameTheme (\ s a -> s{_csHostnameTheme = a})
csHostnameTheme = lens _csHostnameTheme (\ s a -> s{_csHostnameTheme = a})