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+```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
+```
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