def __init__(self, repo):
        super(Repo, self).__init__()
        self._repo = repo
        self._hash_ref_pairs = None
Lists the current prior specification
dataset/ETHPy150Open bloomberg/phabricator-tools/py/phl/phlgitx_refcache.py/Repo.__init__--crossover with--dataset/ETHPy150Open RJT1990/pyflux/pyflux/tsm.py/TSM.list_priors