code: func (txc txStateChanges) getLists() (mined []common.Hash, rollback []common.Hash) {
  	for hash, val := range txc {
  		if val {
  			mined = append(mined, hash)
  		} else {
  			rollback = append(rollback, hash)
  		}
  	}
  	return
  }
docs: // getLists creates lists of mined and rolled back tx hashes