pkg io/fs, method (*PathError) Timeout() bool
pkg io/fs, method (*PathError) Unwrap() error
pkg io/fs, method (FileMode) IsDir() bool
pkg io/fs, method (FileMode) IsRegular() bool
pkg io/fs, method (FileMode) Perm() FileMode
pkg io/fs, method (FileMode) String() string
pkg io/fs, method (FileMode) Type() FileMode
pkg io/fs, type DirEntry interface { Info, IsDir, Name, Type }
pkg io/fs, type DirEntry interface, Info() (FileInfo, error)

pkg math/rand, func New(Source) *Rand
pkg math/rand, func NewSource(int64) Source
pkg math/rand, func NewZipf(*Rand, float64, float64, uint64) *Zipf
pkg math/rand, func NormFloat64() float64
pkg math/rand, func Perm(int) []int
pkg math/rand, func Seed(int64)
pkg math/rand, func Uint32() uint32
pkg math/rand, method (*Rand) ExpFloat64() float64
pkg math/rand, method (*Rand) Float32() float32