i want the image to return with reactions

import os
import string
from random import choice, randint

import discord
from discord import user, message, channel

def get_responses(user_input: str) -> str:
lowered: str = user_input.lower()

if lowered == '':
    return 'fala algo'
elif 'oi' in lowered:
    return 'salve'
elif 'gamble' in lowered:
    return f'You rolled: {randint(1,6)}'
elif 'velha' in lowered:
    return 'https://cdn.discordapp.com/attachments/1229895715657093166/1241841726998446250/New_Piskel-1.png.png?ex=665830fc&is=6656df7c&hm=8cfac1651800f80f61a4c5820b5214605f275a0eb12d56cba42f225315a83d50&'
else:
    return 'nao entendi'

    response = get_responses(message.content)
    if response:
        sent_message = await message.channel.send(response)
        if response == ('https://cdn.discordapp.com/attachments/1229895715657093166/1241841726998446250/New_Piskel-1.png.png?ex=665830fc&is=6656df7c&hm=8cfac1651800f80f61a4c5820b5214605f275a0eb12d56cba42f225315a83d50&'):
            await sent_message.add_reaction('????')