def get_object(self, *args, **kwargs):
        raise NotImplementedError
Looks up bzr version by calling bzr --version.
dataset/ETHPy150Open justquick/django-activity-stream/actstream/feeds.py/AbstractActivityStream.get_object--crossover with--dataset/ETHPy150Open vcstools/vcstools/src/vcstools/bzr.py/_get_bzr_version