import FWCore.ParameterSet.Config as cms

XMLIdealGeometryESSource = cms.ESSource("XMLIdealGeometryESSource",
    geomXMLFiles = cms.vstring(
        'Geometry/CMSCommonData/data/materials/2021/v2/materials.xml', 
        'SimG4CMS/CherenkovAnalysis/data/cms.xml',
        'SimG4CMS/CherenkovAnalysis/data/singleDREAM.xml'),
    rootNodeName = cms.string('cms:OCMS')
)


