cms.ESProducer("SiPixelQualityESProducer",    ListOfRecordToMerge = cms.VPSet(        cms.PSet(            record = cms.string('SiPixelQualityFromDbRcd'),            tag = cms.string('')        ),        cms.PSet(            record = cms.string('SiPixelDetVOffRcd'),            tag = cms.string('')        )    ),    appendToDataLabel = cms.string(''),    siPixelQualityFromDbLabel = cms.string(''))