code: def listBlockChildren(self, block_name=""):
          
          block_name = block_name.replace("*", "%")
          try:
              return self.dbsBlock.listBlockChildren(block_name)
          except dbsException as de:
              dbsExceptionHandler(de.eCode, de.message, self.logger.exception, de.serverError)
          except Exception as ex:
              sError = "DBSReaderModel/listBlockChildren. %s\n. Exception trace: \n %s" % (ex, traceback.format_exc())
              dbsExceptionHandler('dbsException-server-error', dbsExceptionCode['dbsException-server-error'], self.logger.exception, sError)
docs: API to list block children.
  
          :param block_name: name of block who's children needs to be found (Required)
          :type block_name: str
          :returns: List of dictionaries containing following keys (block_name)
          :rtype: list of dicts