title: Send Image or Document with Inline Menu
body: <p>I am coding an Python Telegram Bot with python-telegram-bot. I created a custom inline menu.</p>
  <p>I want that the User could press a button and will get an picture. The <code>send_photo</code> function needs an instance of bot an update.</p>
  <p>But I don't know how to pass that on to the <code>CallBackQuery</code> handler.</p>
  <p>Does anyone have an idea how to solve it?</p>
  <p>The send photo function:</p>
  <pre><code>def gvu(bot, update):
      bot.send_photo(update.message.chat_id, photo=open('botpic/gvu.jpg', 'rb'))
  </code></pre>
  <p>The Handler in Main Routine:</p>
  <pre><code>updater.dispatcher.add_handler(CallbackQueryHandler(pattern=&quot;1&quot;, callback=gvu))
  return self.callback(dispatcher.bot, update, **optional_args)
  </code></pre>
  <p>The error:</p>
  <blockquote>
  <p>TypeError: callback_handler() got an unexpected keyword argument 'chat_data'</p>
  </blockquote>