| 12345678910111213141516171819202122232425262728293031 | language_timezone_mapping = {    "en-US": "America/New_York",    "zh-Hans": "Asia/Shanghai",    "zh-Hant": "Asia/Taipei",    "pt-BR": "America/Sao_Paulo",    "es-ES": "Europe/Madrid",    "fr-FR": "Europe/Paris",    "de-DE": "Europe/Berlin",    "ja-JP": "Asia/Tokyo",    "ko-KR": "Asia/Seoul",    "ru-RU": "Europe/Moscow",    "it-IT": "Europe/Rome",    "uk-UA": "Europe/Kyiv",    "vi-VN": "Asia/Ho_Chi_Minh",    "ro-RO": "Europe/Bucharest",    "pl-PL": "Europe/Warsaw",    "hi-IN": "Asia/Kolkata",    "tr-TR": "Europe/Istanbul",    "fa-IR": "Asia/Tehran",}languages = list(language_timezone_mapping.keys())def supported_language(lang):    if lang in languages:        return lang    error = "{lang} is not a valid language.".format(lang=lang)    raise ValueError(error)
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