var commands = new BotCommands<BotOptions, BotPayload>()
  .SetCommand("/start", (bot, payload) => bot.SendMessage("Hello, I am a bot!", payload))
  .SetCommand("/token", (bot, payload) => bot.SendMessage($"Current token: {bot.Options.Token}", payload))
  .SetCommand("/document", (bot, payload) => bot.SendDocument("https://website.com/document.word", payload));
            
var bot = new TelegramBot(commands);

await bot
  .Configure(options => {
    options.Token = "Place your token here";
  })
  .Start();
});