@cached_property
    def headers(self):
        return EnvironHeaders(self.environ)
A method that calculates the order of the columns that SENNA pipeline
dataset/ETHPy150Open Eforcers/gae-flask-todo/lib/werkzeug/wrappers.py/BaseRequest.headers--crossover with--dataset/ETHPy150Open nltk/nltk/nltk/classify/senna.py/Senna._map