Here are the packages with brief descriptions (if available):

[detail level 1234]

▼Npytest_selfie
▼Nplugin
C_keydefaultdict
CDiskStoragePytest
CFSImplementation
CPytestSnapshotFileLayout
CPytestSnapshotSystem
CSnapshotFileProgress
▼NSelfieSettingsAPI
CSelfieSettingsAPI
CSelfieSettingsSmuggleError
▼Nselfie_lib
▼NArrayMap
C_ArrayMapEntries
C_ArrayMapKeys
CArrayMap
CArraySet
CListBackedSet
▼NAtomic
CAtomicReference
▼NCacheSelfie
CCacheSelfie
CCacheSelfieBinary
▼NCommentTracker
CCommentTracker
CWritableComment
▼NConvertToWindowsNewlines
CConvertToWindowsNewlines
▼NEscapeLeadingWhitespace
CEscapeLeadingWhitespace
▼NFS
CFS
▼NLens
CCamera
CCompoundLens
CLens
▼NLineReader
CLineReader
▼NLiterals
CLanguage
CLiteralFormat
CLiteralRepr
CLiteralString
CLiteralTodoStub
CLiteralValue
CTodoStub
▼NParseException
CParseException
▼NPerCharacterEscaper
CPerCharacterEscaper
▼NRoundtrip
CRoundtrip
NSelfie
▼NSelfieImplementations
CBinaryFacet
CBinarySelfie
CDiskSelfie
CFluentFacet
CReprSelfie
CStringFacet
CStringSelfie
▼NSlice
CSlice
▼NSnapshot
CSnapshot
▼NSnapshotFile
CSnapshotFile
▼NSnapshotReader
CSnapshotReader
▼NSnapshotSystem
CDiskStorage
CMode
CSnapshotSystem
▼NSnapshotValue
CSnapshotValue
CSnapshotValueBinary
CSnapshotValueString
▼NSnapshotValueReader
CSnapshotValueReader
▼NSourceFile
▼CSourceFile
CToBeLiteral
▼NTypedPath
CTypedPath
▼NWithinTestGC
CWithinTestGC
▼NWriteTracker
CCallLocation
CCallStack
CDiskWriteTracker
CFirstWrite
CInlineWriteTracker
CSnapshotFileLayout
CToBeFileLazyBytes
CToBeFileWriteTracker
CWriteTracker