Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 123456]

UEAnalysisJets_cfi
UEAnalysisParticles_cfi
UEAnalysisRootple_cfi
UEAnalysisRootpleOnlyMC_cfi
UEAnalysisTracks_cfi
UMNioTask
uncleanedOnlyElectronSequence_cff
uncleanSCRecovery_cfi
UndergroundCosmicMu_cfi
UndergroundCosmicSPLooseMu_cfi
unifiedSCCollection_cfi
uniformMagneticField_cfi
universalConfigTemplate
UnixSignalService_cfi
unpackBuffers-CaloStage1
unpackBuffers-CaloStage2
unpackData-CaloStage1
unpackData-CaloStage2
unpackedPatTrigger_cfi
unpackedTracksAndVertices_cfi
unpacker2007h4_cff
update_db_credential
updateADCToGeV
updateADCToGeV_express
updateADCToGeV_hlt
updateADCToGeV_test
updateHPSPFTaus_cff
updateIntercali
updateIntercali_express
updateIntercali_hlt
updateIntercali_test
upgradeTracking_phase1_cff
upgradeWorkflowComponents
upload_popcon
ConditionsUploader
HTTP
HTTPError
uploadConditions
ConditionsUploader
HTTP
HTTPError
uploader
FileObj
uploadPayloads
FileObj
UpsEE_7TeV_cfi
UpsEE_8TeV_cfi
UpsEE_cfi
upsilon1sMuMuTrigSettings_cff
Upsilon1SToMuMu_forSTEAM_13TeV_cfi
Upsilon1SToMuMu_forSTEAM_13TeV_TuneCUETP8M1_cfi
Upsilon4sBaBarExample_BpBm_Dstarpipi_D0Kpi_nonres_forSTEAM_13TeV_TuneCUETP8M1_cfi
Upsilon4swithBuToKstarJPsiToMuMu_forSTEAM_13TeV_TuneCUETP8M1_cfi
upsilonToMuMu_EventContent_cff
upsilonToMuMu_HLTPath_cfi
upsilonToMuMu_SkimPath_cff
upsilonToMuMuOutputModuleAODSIM_cfi
UpsMM_7TeV_cfi
UpsMM_8TeV_cfi
UpsMM_8TeV_TuneCUETP8M1_cfi
UpsMM_cfi
UpsMM_EXTRAS_cff
UpsMM_filt_cfi
usedOutput
TestPrintPath
useReflexToDescribeForGenObject
UserOptions_cff
useSource_custom
UseZeroBField_cff
UTarget_cfi
util
getRunInfo
rrapi
RRApi
RRApiError
rrClient
Utilities
ReleaseScripts
commentSkipper
commentSkipper
filter
AbilityToImplementor
InputTagLabelSet
TestModuleCommand
utils
BinToBin
BinToBin1percent
Chi2
KS
StatisticalTest
unpickler
Utils
LoadPrerequisiteSource
utils_v2
Chi2Test
ComparisonError
KolmogorovTest
StatisticalTest	StatisticalTests
UCTAMCRawData
UCTCTP7RawData
UCTDAQRawData
UEAnalysisCorrCali
UEAnalysisJets
UEAnalysisMPI
UEAnalysisOnRootple
UEAnalysisSelectorRootple
UEAnalysisUE
UEAnalysisWeight
UECalibration
UEDMultiLeptonFilter
UEParameters
UETable
UMNioTask
UnbinnedFitDeDxEstimator
UnbinnedLikelihoodFit
UncleanSCRecoveryProducer
UnifiedSCCollectionProducer
UniformMagneticField
UniformMagneticFieldESProducer
UniqueObjectSelector
UnitConverter
UnscheduledHandler
UpdatablePSimHit
UpdatedMuonInnerTrackRef
UpdateTProfile
UrbanMscModel93
Utils	Utility functions