## all_levels {#}

A method that sets all criteria levels. And indicates that the document will be checked according to the criteria of all three levels.


### Returns 


set levels and init settings.


```python
def all_levels(self):
    ...
```





### See Also
* module [`aspose.html.accessibility`](../../)
* class [`ValidationBuilder`](/html/python-net/aspose.html.accessibility/validationbuilder)