text: import FWCore.ParameterSet.Config as cms
  
  # this is the configuration to model pileup adding one zerobias event 
  mix = cms.EDFilter("DataMixingModule",
      EErechitCollection = cms.InputTag("EcalRecHitProducer","EcalRecHitsEE"),
      Label = cms.string(''),
      # Si Pixels
      pixeldigiCollection = cms.InputTag("siPixelDigis"),
      ESRecHitCollectionDM = cms.string('EcalRecHitsES_DM'),
      CSCwiredigiCollection = cms.InputTag("muonCSCDigis"),
      maxBunch = cms.int32(1),
      HOrechitCollection = cms.InputTag("HORecHitCollection"),
      # Muons:
      DTdigiCollection = cms.InputTag("muonDTDigis"),
      CSCstripdigiCollection = cms.InputTag("muonCSCDigis"),
      input = cms.SecSource("EmbeddedRootSource",
          nbPileupEvents = cms.PSet(
              averageNumber = cms.double(25.0)
          ),
          seed = cms.int32(1234567),
          type = cms.string('poisson'),
          fileNames = cms.untracked.vstring('/store/mc/2007/6/12/CSA07-Minbias-1911/0000/007D90A2-7C1D-DC11-B793-001560AC4F10.root')
      ),
      HFRecHitCollectionDM = cms.string('HFRecHitCollection_DM'),
      HBHERecHitCollectionDM = cms.string('HBHERecHitCollection_DM'),
      # Si Strips
      SistripdigiCollection = cms.InputTag("siStripDigis"),
      DTDigiCollectionDM = cms.string('muonDTDigis_DM'),
      PixelDigiCollectionDM = cms.string('siPixelDigis_DM'),
      # Input Selectors/output tags
      # Ecal:	
      EBrechitCollection = cms.InputTag("EcalRecHitProducer","EcalRecHitsEB"),
      bunchspace = cms.int32(25),
      RPCdigiCollection = cms.InputTag("muonRPCDigis"),
      SiStripDigiCollectionDM = cms.string('siStripDigis_DM'),
      ZDCrechitCollection = cms.InputTag("ZDCRecHitCollection"),
      CSCWireDigiCollectionDM = cms.string('muonCSCDigis_DM'),
      HFrechitCollection = cms.InputTag("HFRecHitCollection"),
      RPCDigiCollectionDM = cms.string('muonRPCDigis_DM'),
      EERecHitCollectionDM = cms.string('EcalRecHitsEE_DM'),
      ESrechitCollection = cms.InputTag("ESRecHitProducer","EcalRecHitsES"),
      minBunch = cms.int32(-1),
      # Hcal:
      HBHErechitCollection = cms.InputTag("HBHERecHitCollection"),
      EBRecHitCollectionDM = cms.string('EcalRecHitsEB_DM'),
      ZDCRecHitCollectionDM = cms.string('ZDCRecHitCollection_DM'),
      CSCStripDigiCollectionDM = cms.string('muonCSCDigis_DM'),
      HORecHitCollectionDM = cms.string('HORecHitCollection_DM')
  )
  
  
  