def sfw(self):
return self._return_tag_task('<STR_LIT>')<EOL>
Get SFW label for the given file.

*returns* [Boolean]

```python
from filestack import Client

client = Client("<API_KEY>")
filelink = client.upload(filepath='/path/to/file/foo.jpg')
# returns true if SFW and false if not
sfw = filelink.sfw()
```