def __len__(self):

        return len(self.run_lists)
Translate an application error to a datastore Error, if possible.
dataset/ETHPy150Open borg-project/borg/borg/storage.py/RunData.__len__--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/api/blobstore/blobstore.py/_ToBlobstoreError