I was trying to add user’s name to a python list from function callback_handler() when an inline button is pressed. But when i try to get user’s name from call.message.from_user.username it just gives me bot’s username.

@bot.callback_query_handler(func=lambda call: True)
def callback_handler(call, value=True):


    if call.data == 'teachBot':
        bot.send_message(call.message.chat.id, "Я внимательно слушаю. Оформите сообщение подобно   этому: запрос_ответ1//ответ2//ответ 3 с пробелом")
        print(call.message.text)
        global teachers
        teachers.append(call.message.from_user.username)
        
    elif call.data == 'keep':
        for keys in teachers:
            if keys == call.message.from_user.username:
                teachers.remove(keys)
                

        bot.send_message(call.message.chat.id, 'Ладно брат')

I tried to put user’s name into button’s call.data but it can’t just read it.