EXISTING_STRINGS = {
    "kanken_online",
    "options",
    "log_in",
    "register",
    "log_out"
}

ENGLISH = {
    "kanken_online": "KankenOnline",
    "options": "Options",
    "log_in": "Log in",
    "register": "Register",
    "log_out": "Log out",
    "kanji": "Kanji",
    "forum": "Forum"
}

JAPANESE = {
    "kanken_online": "漢検オンライン",
    "options": "設定",
    "log_in": "ログイン",
    "register": "登録",
    "log_out": "ログアウト",
    "kanji": "漢字",
    "forum": "掲示板"
}

LANGUAGES = [
    ENGLISH,
    JAPANESE
]

assert all(all(key in lang for key in EXISTING_STRINGS) for lang in LANGUAGES)  # Ensure all strings are mapped for all existing languages

def localize(text_id: str, language: dict[str, str]) -> str:
    return language[text_id]