pkg math/rand, type Source interface, Int63() int64
pkg math/rand, type Source interface, Seed(int64)
pkg math/rand, type Zipf struct
pkg mime, func AddExtensionType(string, string) error
pkg mime, func FormatMediaType(string, map[string]string) string
pkg mime, func ParseMediaType(string) (string, map[string]string, error)
pkg mime, func TypeByExtension(string) string
pkg mime/multipart, func NewReader(io.Reader, string) *Reader