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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def auth_get_token(self, check_state=True):
		'Refresh or acquire access_token.'
		res = self.auth_access_data_raw = yield self._auth_token_request()
		defer.returnValue(self._auth_token_process(res, check_state=check_state))