def matchers(self):
        timestamps = Collection.timestamps()
        for ts in self.collections.keys():
            if ts not in timestamps:
                self.collections.pop(ts, None)

        for ts in timestamps:
            if ts not in self.collections:
                log.info('Entity tagger updating collection: %r', ts)
                self.collections[ts] = self.compile_collection(ts[0])

        return self.collections.values()
dataset/ETHPy150Open pudo/aleph/aleph/analyze/entities.py/EntityCache.matchers/original