## key {#int}

Returns the name of the nth key, or null if n is greater than or equal to the number of key/value pairs.


### Returns 


Key string.


```python
def key(self, n):
    ...
```


| Parameter | Type | Description |
| :- | :- | :- |
| n | int | Number of storage item. |



### See Also
* module [`aspose.html.dom`](../../)
* class [`IStorage`](/html/python-net/aspose.html.dom/istorage)