code: func (dr *depositaddresses) convert() map[uint64]*store.StoredDepositAddress {
  	m := make(map[uint64]*store.StoredDepositAddress, len(dr.DepositAddresses))
  	for key, val := range dr.DepositAddresses {
  		keyNum, _ := strconv.ParseUint(key, 10, 64)
  		m[keyNum] = val
  	}
  	return m
  }
docs: // FIXME: remove once MongoDB driver knows how to unmarshal uint64 map keys