def visit_LeftDelimiter(self, token):

        self.stack.append((token, []))
Refresh the access_token using the Credentials object.
dataset/ETHPy150Open Julian/Condent/condent.py/Condenter.visit_LeftDelimiter--crossover with--dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/gauth.py/OAuth2TokenFromCredentials._refresh