foo.rhai

let foo = "bar";
export foo;

hello.rhai

fn MESSAGE_CREATE(message) {
  import "discord" as discord;
  import "https://gist.github.com/appellation/d90018dbe84d110d6fb83b1646a92367/raw/84a6fb20ab6d7f893efce9efd8675c3220d7d345/foo.rhai" as foo;

  debug(message);
  if message.author.has("bot") && message.author.bot {
    return;
  }
  
  if message.content.index_of("!say") == 0 {
    discord::reply(message, foo::foo + message.content.sub_string(4));
  } else if message.content == "!smile" {
    print(":)");
    discord::react(message, "😄");
  }
}