```python
def Timestamp(dt):
    from datetime import datetime
    dt_object = datetime.strptime(dt, '%Y-%m-%d %H:%M:%S')
    return int(dt_object.timestamp())

def Datetime(timestamp):
    from datetime import datetime
    dt_object = datetime.fromtimestamp(timestamp)
    return str(dt_object)

datetime = '2024-12-16 05:34:37' # SQLite
print(timestamp := Timestamp(datetime)) # 1734294877
print(Datetime(timestamp) == datetime) # True
```