@dp.message_handler(commands="set")
async def sticker_set(msg:types.Message):
emoji=["", ""]
await bot.add_sticker_to_set(
user_id=msg.from_user.id,
name=f'{msg.from_user.username}_by_ASCIIStickersBot',
emojis=emoji,
png_sticker="boring.png",
)