cms.ESProducer("MkFitIterationConfigESProducer",    ComponentName = cms.string('hltInitialStepTrackCandidatesMkFitConfig'),    appendToDataLabel = cms.string(''),    config = cms.FileInPath('RecoTracker/MkFit/data/mkfit-phase2-lstStep.json'),    maxClusterSize = cms.uint32(8),    minPt = cms.double(0.9))