Facebook messenger platform: generic template with quick replies

I was looking at some pretty popular bots like "The Guardian" and i noticed that whenever you get a generic template reply from it it also displays some quick reply buttons (see the photo attached). How did "The Guardian Bot" achieve this? How he combined quick replies and a generic template? It must be two messages involved.

I have implemented the bot in nodejs and I am using a node module called messenger-bot which makes it easier to call the messenger bot API. Here's my customized code for you

const http = require('http')
const https = require('https')
const Bot = require('messenger-bot')
var bot = new Bot({
    token: 'your FB app token',
    verify: 'VERIFY_TOKEN'
})

bot.on('postback', (payload, reply) => {
    var postback = payload.postback.payload;
    if (postback == "yes") {

        function getQuickReplies() {
            console.log("in next function");
            var quick_list = {
                "text": "Check the next article?",
                "quick_replies": [{
                        "content_type": "text",
                        "title": "More stories",
                        "payload": "more stories"
                    },
                    {
                        "content_type": "text",
                        "title": "Sport",
                        "payload": "sport"
                    },
                    {
                        "content_type": "text",
                        "title": "Business",
                        "payload": "business"
                    }

                ]
            };
            bot.getProfile(payload.sender.id, (err, profile) => {
                if (err) throw err
                text = quick_list;
                bot.sendMessage(payload.sender.id, text) {//this prints quick replies
                    console.log("sending message");
                }
            });
        }

        //calling generic template

        var generic_temp = "message": {
            "attachment": {
                -- - your code-- -
            }
        }; //generic template refer - https://developers.facebook.com/docs/messenger-platform/send-api-reference/generic-template

        bot.getProfile(payload.sender.id, (err, profile) => {
            if (err) throw err
            bot.sendMessage(payload.sender.id, generic_temp) {//this prints generic template
                console.log("sending message");
            }
        });

        //calling the quick replies once the generic template is sent

        getQuickReplies(); //to avoid async execution issue, we will have to put this in a function.

    }
});

references - Generic template, Quick replies, messenger-bot npm

Hope this helps! Happy coding ;)