I have an sklearn model that I trained on my local machine and uploaded to dropbox as a pickle object. Is there anyway to use it in my backtests on QC?

I tried downloading using

response = urllib.urlopen("URL/to/model")
self.model = pickle.loads(response.read())

But got the following error:

Build Warning: File: n/a Line:0 Column:0 - Sorry, 'open(' is not whitelisted within QuantConnect.
Remove this code statement