pkg net, type Conn interface { Close, LocalAddr, Read, RemoteAddr, SetDeadline, SetReadDeadline, SetWriteDeadline, Write }
pkg net, type Conn interface, Close() error
pkg net, type Conn interface, LocalAddr() Addr
pkg net, type Conn interface, Read([]uint8) (int, error)
pkg net, type Conn interface, RemoteAddr() Addr
pkg net, type Conn interface, SetDeadline(time.Time) error
pkg net, type Conn interface, SetReadDeadline(time.Time) error

pkg net, method (*UnixListener) SyscallConn() (syscall.RawConn, error)
pkg net/smtp, method (*Client) Noop() error
pkg os, func IsTimeout(error) bool
pkg os, method (*File) SetDeadline(time.Time) error
pkg os, method (*File) SetReadDeadline(time.Time) error
pkg os, method (*File) SetWriteDeadline(time.Time) error
pkg os, method (*PathError) Timeout() bool
pkg os, method (*SyscallError) Timeout() bool