reply() to send a threaded reply by wrapping content with the message being replied to. See Reactions and replies for the full details and sugar methods.
reply() cannot wrap reply, edit, reaction, group, typing, rename, avatar, or unsend content.
Reply sugar
message.reply(...) has the same variadic signature and delegates to space.send(reply(...)) internally:
reply() resolves as a no-op. If you need guaranteed delivery, use space.send(...) instead.