def __contains__(self, name):
        name = OrderBy(name).bare
        for order_by in self:
            if order_by.bare == name:
                return True
        return False
Fallback replacement for getEvent() that emits
dataset/ETHPy150Open bradleyayers/django-tables2/django_tables2/utils.py/OrderByTuple.__contains__--crossover with--dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/xml/dom/pulldom.py/DOMEventStream._emit