Convert Thai digits to Arabic digits

thai_to_arabic_digits.py

_THAI_ARABIC = {
    "๐": "0",
    "๑": "1",
    "๒": "2",
    "๓": "3",
    "๔": "4",
    "๕": "5",
    "๖": "6",
    "๗": "7",
    "๘": "8",
    "๙": "9",
}

def thai_digit_to_arabic_digit(text: str) -> str:
    """
    :param str text: Text with Thai digits such as '๑', '๒', '๓'
    :return: Text with Thai digits being converted to Arabic digits such as '1', '2', '3'
    """
    if not text or not isinstance(text, str):
        return ""

    newtext = []
    for ch in text:
        if ch in _THAI_ARABIC:
            newtext.append(_THAI_ARABIC[ch])
        else:
            newtext.append(ch)

    return "".join(newtext)