def docid_to_name(self, docid):
        return self._docid_to_name_map[docid]
POST to:
dataset/ETHPy150Open taherh/pysimsearch/pysimsearch/sim_index/sim_index_collection.py/SimIndexCollection.docid_to_name--crossover with--dataset/ETHPy150Open mozilla/inventory/core/keyvalue/api.py/kv_update