You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: custom_decoder.go
    path of file: ./repos/Cookbook/go/gopacket
    
    the code of the file until where you have to start completion: package main

import (
	"fmt"
	"github.com/google/gopacket"
)

// Create custom layer structure
type CustomLayer struct {
	// This layer just has two bytes at the front
	SomeByte    byte
	AnotherByte byte
	restOfData  []byte
}

// Register the layer type so we can use it
// The first argument is an ID. Use negative
// or 2000+ for custom layers. It must be unique
var CustomLayerType = gopacket.RegisterLayerType(
	2001,
	gopacket.LayerTypeMetadata{
		"CustomLayerType",
		gopacket.DecodeFunc(decodeCustomLayer),
	},
)

// When we inquire about the type, what type of layer should
// we s
    
func main() {
	// If you create your own encoding and decoding you can essentially
	// create your own protocol or implement a protocol that is not
	// already defined in the layers package. In our example we are just
	// wrapping a normal ethernet packet with our own layer.
	// Creating your own protocol is good if you want to create
	// some obfuscated binary data type that was difficult for others
	// to decode

	// Finally, decode your packets:
	rawBytes := []byte{0xF0, 0x0F, 65, 65, 66, 67, 68}
	packet := gopacket.NewPacket(
		rawBytes,
		CustomLayerType,
		gopacket.Default,
	)
	fmt.Println("Created packet out of raw bytes.")
	fmt.Println(packet)

	// Decode the packet as our custom layer
	customLayer := packet.Layer(CustomLayerType)
	if customLayer != nil {
		fmt.Println("Packet was successfully decoded with custom layer decoder.")
		customLayerContent, _ := customLayer.(*CustomLayer)
		// Now we can access the elements of the custom struct
		fmt.Println("Payload: ", customLayerContent.LayerPayload())
		fmt.Println("SomeByte element:", customLayerContent.SomeByte)
		fmt.Println("AnotherByte element:", customLayerContent.AnotherByte)

	}
}