I need to get a message in a conversation with a user that already exists, but I ran into the problem that I can’t get the conversation as an object by id, although the id is correct
Error: ‘NoneType’ object has no attribute ‘fetch_message’

async def updatePost(userId, channelId, messageId):
    print("Проверка")
    user = await bot.fetch_user(userId)
    print(channelId)
    
    channel = bot.get_channel(int(channelId))
    print(channel)
    print(messageId)
    message = await channel.fetch_message(messageId)

I have already tried to enter id as a constant, but the error is still the same: ‘NoneType’ object has no attribute ‘fetch_message’