fuzz.go
func FuzzConnAfter(conn net.Conn, d time.Duration) net.Conn {
	return FuzzConnAfterFromConfig(conn, d, DefaultFuzzConnConfig())
}
func FuzzConnAfter(conn net.Conn, d time.Duration) net.Conn {
	return FuzzConnAfterFromConfig(conn, d, DefaultFuzzConnConfig())
}
// FuzzConnAfter creates a new FuzzedConnection. Fuzzing starts when the
// duration elapses.