replace_datetime() can now accept a datetime parameter

    x = re.sub(r'\[model_hash]', getattr(p, "sd_model_hash", shared.sd_model.sd_model_hash), x, flags=re.IGNORECASE)

    x = re.sub(r'\[date]', datetime.date.today().isoformat(), x, flags=re.IGNORECASE)

    x = replace_datetime(x)

    x = replace_datetime(x, datetime.datetime.now())

    x = re.sub(r'\[job_timestamp]', getattr(p, "job_timestamp", shared.state.job_timestamp), x, flags=re.IGNORECASE)

    # Apply [prompt] at last. Because it may contain any replacement word.^M

    if prompt is not None:

    return result + 1

def replace_datetime(input_str: str):

def replace_datetime(input_str: str, time_datetime: datetime.datetime = None):

    """

    Args:

        input_str (`str`):

            the String to be Formatted

        time_datetime (`datetime.datetime`)

            the time to be used, if None, use datetime.datetime.now()

    Formats sub_string of input_str with formatted datetime with time zone support.

    accepts sub_string format: [datetime], [datetime<Format>], [datetime<Format><Time Zone>]

    case insensitive

    https://pytz.sourceforge.net/

    """

    default_time_format = '%Y%m%d%H%M%S'

    time_now = datetime.datetime.now()

    if time_datetime is None:

        time_datetime = datetime.datetime.now()

    # match all datetime to be replace

    match_itr = re.finditer(r'\[datetime(?:<([^>]*)>(?:<([^>]*)>)?)?]', input_str, re.IGNORECASE)

    for match in reversed(list(match_itr)):

            time_zone = None

        # generate time string

        time_zone_time = time_now.astimezone(time_zone)

        time_zone_time = time_datetime.astimezone(time_zone)

        try:

            formatted_time = time_zone_time.strftime(time_format)