import logging
from aiogram import Bot, Dispatcher, executor, types

bot = Bot(token="")
dp = Dispatcher(bot)
logging.basicConfig(level=logging.INFO)
a = 2
b = 4
sum = 0
@dp.message_handler(commands="test1")
async def cmd_test1(message: types.Message):
await message.reply("Test 1")
@dp.message_handler(commands="xyz")
async def cmd_test1(message: types.Message):
await message.reply("zyx")
@dp.message_handler(commands="suma")
async def cmd_test3(message: types.Message):
sum = a + b
await message.reply(str(sum))
@dp.message_handler(commands="suma")
async def cmd_test3(message: types.Message):
sum = a + b
await message.reply(str(sum))
@dp.message_handler(commands="start")
async def cmd_start(message: types.Message):
await message.reply("ваш текст")

if name == "__main__":
executor.start_polling(dp,skip_updates=True,)

import logging
from aiogram import Bot, Dispatcher, executor, types
from aiogram.types import ReplyKeyboardRemove, \
ReplyKeyboardMarkup, KeyboardButton, \
InlineKeyboardMarkup, InlineKeyboardButton
bot = Bot(token="5267156900:AAGG2PEMYsJHrdoxsqsvj-LEAM6ISJOSYg8")
dp = Dispatcher(bot)
logging.basicConfig(level=logging.INFO)
a = 2
b = 4
sum = 0
@dp.message_handler(commands="test1")
async def cmd_test1(message: types.Message):
await message.reply("Test 1")
@dp.message_handler(commands="xyz")
async def cmd_test1(message: types.Message):
await message.reply("zyx")

@dp.message_handler(commands="suma")
async def cmd_test3(message: types.Message):
sum = a + b
await message.reply(str(sum))
@dp.message_handler(commands="suma")
async def cmd_test3(message: types.Message):
sum = a + b
await message.reply(str(sum))
# Началась кнпока и тд
@dp.message_handler(commands="start")
async def cmd_start(message: types.Message):
await message.reply("ваш текст")
button_hi = KeyboardButton('Привет! 👋')

greet_kb = ReplyKeyboardMarkup()
greet_kb.add(button_hi)
@dp.message_handler(commands="benstart")
async def cmd_start(message: types.Message):
await message.reply("Привет!", reply_markup=greet_kb)
@dp.message_handler(commands=['button'])
async def button_message(message):
markup=types.ReplyKeyboardMarkup(resize_keyboard=True)
item1=types.KeyboardButton("Кнопка")
markup.add(item1)
await message.reply('Выберите что вам надо', reply_markup=markup)
if name == "__main__":
executor.start_polling(dp,skip_updates=True,)

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Проверите бота