def METHOD_NAME(self, blockName, dbsFile = {}):
    run =  GlobalParams.getRunNumberForBlock(blockName)
    defaultDBSFile = {'Checksum': "123456",
                      'NumberOfEvents': GlobalParams.numOfEventsPerFile(),
                      'FileSize': GlobalParams.sizeOfFile(),
                      'ParentList': [],
                      # assign run and lumi numbers in appropriate range: note run numbers
                      #  for successive blocks may overlap if numOfRunsPerFile() > 1
                      'LumiList': [{'RunNumber': GlobalParams.numOfRunsPerFile(),
                                    'LumiSectionNumber': list(range(1, GlobalParams.numOfLumisPerBlock()+1))}]
                      }
    defaultDBSFile.update(dbsFile)
    return defaultDBSFile