def _lookup_consumer_tag_by_consumer(self, consumer):
        for (tag, func) in self._consumer_cb.iteritems():
            if func == consumer:
                return tag
Return True if this CaseSet has no Cases in common with the
dataset/ETHPy150Open agoragames/haigha/haigha/classes/basic_class.py/BasicClass._lookup_consumer_tag_by_consumer--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.lib/src/openmdao/lib/casehandlers/caseset.py/CaseSet.isdisjoint