How to add buttons to telegram bot via javascript?

Question

JavaScript

It turns out that a telegram bot can be made through Google Apps Script.
Here is one of the videos
Now, I can't figure out in the documentation how to add buttons to the chat?
My code:

var token = "651611557:AAHV5wBEwTw1d9v-tD5iJ6WOGjtaI";
var telegramUrl = "https://api.telegram.org/bot"+token;
var webAppUrl = "https://script.google.com/macros/s/AKfycbwG52kyemggxcPWQTSh0sHDsvoqX0zneIXU0MENFd5l4FMOhrQ0g/exec";
var ssId = "196GxmWJT8cTsRrnSBohSx77YFKYCRtjDu7OCuDkg_JI";



function getMe() {
  var url = telegramUrl + "/getMe";
  var response = UrlFetchApp.fetch(url);
  Logger.log(response.getContentText());
}

function setWebhook(){
  var url = telegramUrl + "/setWebhook?url=" + webAppUrl;
  var response = UrlFetchApp.fetch(url);
}


function sendText(id, text){
  var url = telegramUrl + "/sendMessage?chat_id=" + id +"&text="+text;
  var response = UrlFetchApp.fetch(url);
}

function doGet(e){
  return HtmlService.createHtmlOutput("Hi there");
}

function doPost(e){
  var data = JSON.parse(e.postData.contents);
  var text = data.message.text;
  var id = data.message.chat.id;
  var name = data.message.chat.first_name + " " + data.message.chat.last_name;
  var answer = "Салам " + name + "! Спасибо за обращение "+ text;
  sendText(id, answer);
  SpreadsheetApp.openById(ssId).getSheets()[0].appendRow([new Date(), id, name, answer]);
}

Answer 1

function sendMessage(from_chat_id, text, keyboard, id_msg) { // Отправляет сообщение используя sendMessage
  var data = {
    method: "sendMessage",
    chat_id: String(from_chat_id),
    text: text,
    parse_mode: "HTML",
    reply_markup: JSON.stringify(keyboard),
    reply_to_message_id: String(id_msg)
  };
  var options = {
    method: 'POST',
    payload: data,
    muteHttpExceptions: true
  };
  var response = UrlFetchApp.fetch('https://api.telegram.org/bot' + token + '/sendMessage', options);
  console.log(JSON.parse(response.getContentText(), null, 7))
}

let keyboard_contact = {
  keyboard: [
    [{
      text: "Авторизоваться",
      request_contact: true
    }]
  ],
  resize_keyboard: true,
  one_time_keyboard: true
};

let keyboard_menu_inline = {
  inline_keyboard: [
      [{
        text: "Услуги  ",
        callback_data: "services"        
      }, {
        text: "Оплата  ",
        url: "https://google.com",
        callback_data: "pay"         
      }],
      [{
        text: "Статус ✅ ",
        url: "https://google.com"        
      }, {
        text: "Обратная связь  ",
        callback_data: "support"        
      }]
    ]
};

sendMessage(from_chat_id, text, keyboard)