def reverse(self):
        return self
Test BlockParser.parseDocument.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/models/query.py/EmptyQuerySet.reverse--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/markdown/regression-tests.py/TestBlockParser.testParseDocument