@abc.abstractmethod
    def getFieldNames(self):
Return a request token pair.
dataset/ETHPy150Open sightmachine/SimpleCV/SimpleCV/Features/FeatureExtractorBase.py/FeatureExtractorBase.getFieldNames--crossover with--dataset/ETHPy150Open litl/rauth/rauth/service.py/OAuth1Service.get_request_token