struct Content {
    content: String;
}

contract Gift {
    // owner: Address;
    // content: Content;

    // init(
    //     owner: Address,
    //     content: Content
    // ) {
    //     self.owner = owner;
    //     self.content = content;
    // }

    receive() {
        self.reply(
            "Hello, world!".asComment()
        );
    }

}