how to send the memo tx with the sdk ? about solana-go-sdk HOT 6 CLOSED

package main

import (
	"context"
	"log"

	"github.com/portto/solana-go-sdk/client"
	"github.com/portto/solana-go-sdk/common"
	"github.com/portto/solana-go-sdk/program/sysprog"
	"github.com/portto/solana-go-sdk/rpc"
	"github.com/portto/solana-go-sdk/types"
)

// you can fill your key here
var feePayer, _ = types.AccountFromBytes([]byte{178, 244, 76, 4, 247, 41, 113, 40, 111, 103, 12, 76, 195, 4, 100, 123, 88, 226, 37, 56, 209, 180, 92, 77, 39, 85, 78, 202, 121, 162, 88, 29, 125, 155, 223, 107, 139, 223, 229, 82, 89, 209, 27, 43, 108, 205, 144, 2, 74, 159, 215, 57, 198, 4, 193, 36, 161, 50, 160, 119, 89, 240, 102, 184})

// you can fill your key here
var alice, _ = types.AccountFromBytes([]byte{196, 114, 86, 165, 59, 177, 63, 87, 43, 10, 176, 101, 225, 42, 129, 158, 167, 43, 81, 214, 254, 28, 196, 158, 159, 64, 55, 123, 48, 211, 78, 166, 127, 96, 107, 250, 152, 133, 208, 224, 73, 251, 113, 151, 128, 139, 86, 80, 101, 70, 138, 50, 141, 153, 218, 110, 56, 39, 122, 181, 120, 55, 86, 185})

func main() {
	c := client.NewClient(rpc.DevnetRPCEndpoint)

	// to fetch recent blockhash
	res, err := c.GetRecentBlockhash(context.Background())
	if err != nil {
		log.Fatalf("get recent block hash error, err: %v\n", err)
	}

	// create a message
	message := types.NewMessage(types.NewMessageParam{
		FeePayer:        feePayer.PublicKey,
		RecentBlockhash: res.Blockhash,
		Instructions: []types.Instruction{
			{
				ProgramID: common.PublicKeyFromString("MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr"),
				Accounts: []types.AccountMeta{
					{PubKey: alice.PublicKey, IsSigner: true, IsWritable: false},
				},
				Data: []byte("Hello World"),  // you memo here
			},
			sysprog.Transfer(sysprog.TransferParam{
				From:   alice.PublicKey,
				To:     common.PublicKeyFromString("2xNweLHLqrbx4zo1waDvgWJHgsUpPj8Y8icbAFeR4a8i"),
				Amount: 1e8,
			}),
		},
	})

	// create tx by message + signer
	tx, err := types.NewTransaction(types.NewTransactionParam{
		Message: message,
		Signers: []types.Account{feePayer, alice},
	})
	if err != nil {
		log.Fatalf("failed to new transaction, err: %v", err)
	}

	// send tx
	txhash, err := c.SendTransaction(context.Background(), tx)
	if err != nil {
		log.Fatalf("failed to send tx, err: %v", err)
	}

	log.Println("txhash:", txhash)
}