The Bot Object

bot.command(trigger, handler)   // responds to /commands
bot.hears(pattern, handler)     // text match — string or RegExp
bot.on(event, handler)          // any Telegram update type
bot.action(data, handler)       // inline keyboard callbacks

ctx.from.id            // Telegram user ID (number)
ctx.from.first_name    // user's first name
ctx.chat.id            // chat ID
ctx.message.text       // raw text content

// Premium emoji in messages
ctx.reply('Hello 👋', { parse_mode: 'HTML' });

// Premium emoji inside inline keyboard buttons
ctx.reply('Pick one:', {
  reply_markup: {
    inline_keyboard: [[
      { text: '⭐ Premium', callback_data: 'premium' }
    ]]
  }
});

// Star payments / invoices
ctx.replyWithInvoice({
  title: 'Pro plan',
  description: 'Monthly subscription',
  payload: 'pro-monthly',
  currency: 'XTR',
  prices: [{ label: 'Pro', amount: 100 }]
});

// Rich message (formatted text + media)
bot.telegram.sendMessage(ctx.chat.id, 'Rich <b>formatted</b> message', { parse_mode: 'HTML' });