def get_event_types(self):
        return list(sorted(self._he_handlers.keys()))
Parse the header.  May return None if it cannot parse.
dataset/ETHPy150Open zoofIO/flexx/flexx/event/_hasevents.py/HasEvents.get_event_types--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/webob_0_9/webob/byterange.py/ContentRange.parse