code: def get_return_of_capital(self) -> Decimal:
          
          txs: List[Split] = self.get_splits_query().all()
          roc_tx: List[Split] = []
          sum = Decimal(0)
  
          for tx in txs:
              if tx.quantity == Decimal(0) and tx.value != Decimal(0):
                  # This is a return of capital transaction
                  roc_tx.append(tx)
                  sum += tx.value
              #logging.debug(tx.quantity) 
  
          # roc_tx is a list of transactions, should they be useful.
          return sum
docs: Fetches and adds all Return-of-Capital amounts.
          These are the cash transactions that do not involve security amounts 
          (0 value for shares).