How to get callback_data from context

[Aliph0th]

I have a lot of inline buttons that change the language of the bot.
I want to make one function in my AppUpdate that would change the language depending on the callback_data of the button that was pressed:

@Action(['en', 'ru', ...])
   async changeLanguage(@Ctx() ctx: Context) {
      await ctx.deleteMessage();
      ctx.session.language = ??????????????
     ...
   }

Buttons:

export default Markup.inlineKeyboard([
   [Markup.button.callback('🇬🇧 English', 'en')],
   [Markup.button.callback('🇷🇺 Русский', 'ru')],
  ...
]);

[unnaidan]

Hello @Aliph0th, how did you solve this?