cms.EDProducer("MkFitSiPixelHitConverter",\ 
    clusters = cms.InputTag("hltSiPixelClusters"),\ 
    hits = cms.InputTag("hltSiPixelRecHits"),\ 
    mightGet = cms.optional.untracked.vstring,\ 
    ttrhBuilder = cms.ESInputTag("","WithTrackAngle")\ 
)\