code: def retrieve_netting_set(self, asset_manager_id, transaction_id):
          
          self.logger.info('Retrieve Netting Set - Asset Manager: %s - Transaction ID: %s', asset_manager_id,
                           transaction_id)
          url = '%s/netting/%s/%s' % (self.endpoint, asset_manager_id, transaction_id)
          response = self.session.get(url)
          if response.ok:
              net_transaction_id, netting_set_json = next(iter(response.json().items()))
              netting_set = [json_to_transaction(net_transaction) for net_transaction in netting_set_json]
              self.logger.info('Returned %s Transactions in Netting Set.', len(netting_set))
              return net_transaction_id, netting_set
          else:
              self.logger.error(response.text)
              response.raise_for_status()
docs: Returns all the transaction_ids associated with a single netting set.  Pass in the ID for any transaction in
          the set.
          :param asset_manager_id:  The asset_manager_id for the netting set owner.
          :param transaction_id: A transaction_id of an entry within the netting set.
          :return: