Sending Custom object in chat

Sending Custom Object in chat
I am currently trying to implement custom objects into my Sendbird Chat (I am currently using UIKit). Ideally, I wanted to be able to have an object with a thumbnail picture and different options available to the user with a progress bar on the bottom (number of users who interacted out of total in chat). Would that be possible with IOS currently?

Also does anyone have any pictures of what that would look like? I can’t find any pictures online of what the polls would look like within sendbird Chat.