<|im_start|>user
How do I create a simple countdown timer in Python?<|im_end|>
<|im_start|>assistant
```python
import time<|im_end|>

<|im_start|>user
How do I create a simple countdown timer in Python?<|im_end|>
<|im_start|>assistant
```python
class CustomTimer:
    def __init__(self, total_seconds):
        self.total_seconds = total_seconds<|im_end|>

How do I create a simple countdown timer in Python?