How to send audio files to telegram bot in ruby?

Question

ruby

Tell me how files drop out when you click on the button

require 'telegram/bot'

token = 'my_token'

Telegram::Bot::Client.run(token) do |bot|
  bot.listen do |message|
    case message
       when Telegram::Bot::Types::CallbackQuery
           case message.data
           when 'touch'
 bot.api.send_audio(chat_id: message.from.id, document: "CQACAgIAAxkBAAEPi7hhyONlERbiM4fCkO5VgGPJI1ipJgAC_hAAAtRFYEueXRPeGwlJriME")


             bot.api.answer_callback_query(callback_query_id: message.id)
           when 'test'
               bot.api.send_message(chat_id: message.from.id, text: "Don't test me!")
           end
       when Telegram::Bot::Types::Message
           case message.text
           when '/start'
               kb = [
                   Telegram::Bot::Types::InlineKeyboardButton.new(text: 'Test', callback_data: 'test'),
                   Telegram::Bot::Types::InlineKeyboardButton.new(text: 'Touch me', callback_data: 'touch'),
               ]
               markup = Telegram::Bot::Types::InlineKeyboardMarkup.new(inline_keyboard: kb)
               bot.api.send_message(chat_id: message.chat.id, text: 'Make a choice', reply_markup: markup)
           end
       end
   end
end

Tell me what's wrong here?