def tell(self):
        _complain_ifclosed(self.closed)
        return self.pos
Get a credential from the multistore.
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/io.py/StringIO.tell--crossover with--dataset/ETHPy150Open google/oauth2client/oauth2client/contrib/multistore_file.py/_MultiStore._get_credential