def guess_total_memory():
    if importSuccess:
        return parse_meminfo()
    else:
        return -1
Return a list of (sha1, name) tuples from the repo's list of refs.
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/core/system/windows.py/guess_total_memory--crossover with--dataset/ETHPy150Open bloomberg/phabricator-tools/py/phl/phlgitx_refcache.py/Repo.hash_ref_pairs