Go で Google Sheets API V4 にデータを書き込んだり更新したりするにはどうすればよいですか?

<code class="go">func write() {
    // Load client secret file
    b, err := ioutil.ReadFile("./Google_Sheets_API_Quickstart/client_secret.json")
    if err != nil {
        log.Fatalf("Unable to read client secret file: %v", err)
    }

    // Configure the client
    config, err := google.ConfigFromJSON(b, "https://www.googleapis.com/auth/spreadsheets")
    if err != nil {
        log.Fatalf("Unable to parse client secret file to config: %v", err)
    }
    client := getClient(ctx, config)

    // Create Sheets client
    srv, err := sheets.New(client)
    if err != nil {
        log.Fatalf("Unable to retrieve Sheets Client %v", err)
    }

    // Set spreadsheet and range variables
    spreadsheetId := "YOUR SPREADSHEET ID"
    writeRange := "A1"

    // Create ValueRange object
    var vr sheets.ValueRange

    // Add values to the range
    myval := []interface{}{"One", "Two", "Three"}
    vr.Values = append(vr.Values, myval)

    // Update the spreadsheet
    _, err = srv.Spreadsheets.Values.Update(spreadsheetId, writeRange, &vr).ValueInputOption("RAW").Do()
    if err != nil {
        log.Fatalf("Unable to retrieve data from sheet. %v", err)
    }
}</code>