!! DateTime functions module

def datetime_now() {
    return time_now();
}

def datetime_sleep(seconds) {
    return time_sleep(seconds);
}

def datetime_format(timestamp, format) {
    // This is a placeholder for future implementation
    // In a real implementation, we would format the timestamp according to the format string
    return `Format: ${format}, Timestamp: ${timestamp}`;
}

def datetime_parse(date_string, format) {
    // This is a placeholder for future implementation
    // In a real implementation, we would parse the date string according to the format string
    return `Parsed: ${date_string}, Format: ${format}`;
}