def get_concat(self, prefix, key, cb):
        if not cb:
            return

        if prefix + key in self.localstore_sets:
            _log.analyze(self.node.id, "+ GET LOCAL", None)
            value = self.localstore_sets[prefix + key]
            # Return the set that we intended to append since that's all we have until it is synced
            local_list = list(value['+'])
        else:
            local_list = []
        try:
            self.storage.get_concat(key=prefix + key,
                                    cb=CalvinCB(func=self.get_concat_cb, org_cb=cb, org_key=key, local_list=local_list))
        except:
            _log.error("Failed to get: %s" % key, exc_info=True)
            async.DelayedCall(0, cb, key=key, value=local_list if local_list else None)
Set movie title.
dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/runtime/north/storage.py/Storage.get_concat--crossover with--dataset/ETHPy150Open disqus/playa/playa/lib/vlc.py/MediaPlayer.set_title