}
}

// interfaceDecode decodes the next interface value from the stream and returns it.
func interfaceDecode(dec *gob.Decoder) Pythagoras {
	// The decode will fail unless the concrete type on the wire has been
	// registered. We registered it in the calling function.
	var p Pythagoras
	err := dec.Decode(&p)
	if err != nil {
		log.Fatal("decode:", err)
	}
	return p

	enc := gob.NewEncoder(&network) // Will write to network.
	dec := gob.NewDecoder(&network) // Will read from network.

	// Encode (send) some values.
	err := enc.Encode(P{3, 4, 5, "Pythagoras"})
	if err != nil {
		log.Fatal("encode error:", err)
	}
	err = enc.Encode(P{1782, 1841, 1922, "Treehouse"})
	if err != nil {
		log.Fatal("encode error:", err)
	}

	// Decode (receive) and print the values.