def apply_everywhere(self, chart, grammar):
        raise NotImplementedError()
Validates request token is available for client.
dataset/ETHPy150Open nltk/nltk/nltk/parse/chart.py/ChartRuleI.apply_everywhere--crossover with--dataset/ETHPy150Open lepture/flask-oauthlib/flask_oauthlib/provider/oauth1.py/OAuth1RequestValidator.validate_request_token