@cached_property
    def if_match(self):
        return parse_etags(self.environ.get('HTTP_IF_MATCH'))
Get all the message's header fields and values.
dataset/ETHPy150Open Eforcers/gae-flask-todo/lib/werkzeug/wrappers.py/ETagRequestMixin.if_match--crossover with--dataset/ETHPy150Open babble/babble/include/jython/Lib/email/message.py/Message.items