The bot in the telegram does not work, although it seems to be written correctly? bot doesn't send text message but image sends?

Question

Python

import telebot
bot = telebot.TeleBot('1232702417:AAF5j6YSgwuI0Qehx81Rm3pbUCap4cWFO8Q')

@bot.message_handler(commands=['/start'])
def send_welcome(message):
pic = open('pictures/01.png', 'rb')
bot.send_photo(message.from_user.id, pic)
bot.send_message(message.from_user.id, 'Welcome, {0.first_name}!\nI am {1.first_name} , bot:).'.format(message .from_user, bot.get_me))

@bot.message_handler(content_types=['text'])
def get_text_messages(message):
pass

bot.polling(none_stop=True, interval=0)

Answer 1

Not right.
1. Commands are specified without /
2. message.from_user is an object, not a person's name.
3. Why do we need 0. and 1.?