def copy(self):
        return self.__deepcopy__()
Given a refresh token, obtain a new access token.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-0.96/django/utils/datastructures.py/MultiValueDict.copy--crossover with--dataset/ETHPy150Open soundcloud/soundcloud-python/soundcloud/client.py/Client._refresh_token_flow