interface StatsBase
isFile(): booleanisDirectory(): booleanisBlockDevice(): booleanisCharacterDevice(): booleanisSymbolicLink(): booleanisFIFO(): booleanisSocket(): booleanisFile(): booleanisDirectory(): booleanisBlockDevice(): booleanisCharacterDevice(): booleanisSymbolicLink(): booleanisFIFO(): booleanisSocket(): boolean