pkg encoding/xml, type UnmarshalerAttr interface, UnmarshalXMLAttr(Attr) error
pkg flag, type Getter interface { Get, Set, String }
pkg flag, type Getter interface, Get() interface{}
pkg flag, type Getter interface, Set(string) error
pkg flag, type Getter interface, String() string
pkg flag, var CommandLine *FlagSet
pkg go/ast, type SliceExpr struct, Max Expr

pkg os, func Getegid() int
pkg os, func Getenv(string) string
pkg os, func Geteuid() int
pkg os, func Getgid() int
pkg os, func Getgroups() ([]int, error)
pkg os, func Getpagesize() int
pkg os, func Getpid() int
pkg os, func Getppid() int
pkg os, func Getuid() int
pkg os, func Getwd() (string, error)
pkg os, func Hostname() (string, error)
pkg os, func IsExist(error) bool