docs: def AckFlowProcessingRequests(self, requests, cursor=None):
      """Deletes a list of flow processing requests from the database."""
      if not requests:
        return
  
      query = "DELETE FROM flow_processing_requests WHERE "
  
      conditions = []
      args = []
      for r in requests:
        conditions.append(
            "(client_id=%s AND flow_id=%s AND timestamp=FROM_UNIXTIME(%s))")
        args.append(db_utils.ClientIDToInt(r.client_id))
        args.append(db_utils.FlowIDToInt(r.flow_id))
        args.append(mysql_utils.RDFDatetimeToTimestamp(r.timestamp))
  
      query += " OR ".join(conditions)
      cursor.execute(query, args)