def verify_request_token(self, token, request):
        raise NotImplementedError("Subclasses must implement this function.")
Finds text for the first matching subelement, by tag name.
dataset/ETHPy150Open idan/oauthlib/oauthlib/oauth1/rfc5849/request_validator.py/RequestValidator.verify_request_token--crossover with--dataset/ETHPy150Open flosch/simpleapi/example_project/client/python/sapi/message.py/MessageElement.iter_findtext