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import FWCore.ParameterSet.Config as cms

#
# use this cff to switch off the mag field 
#
UniformMagneticFieldESProducer = cms.ESProducer("UniformMagneticFieldESProducer",
    ZFieldInTesla = cms.double(0.0)
)

es_prefer_UniformMagneticFieldESProducer = cms.ESPrefer("UniformMagneticFieldESProducer")