Sending data to broker from HC3 through MQTT

[frederiksborgvej388 0]

I'm new to coding in HC3 and was wondering if anyone could help me understand how to publish to a know broker. I am trying to publish data to a broker. I managed to do this in python with the code below. Is there anyone here who could help me translate this to HC3?
 

import sys
import time
import numbers
from datetime import datetime, timezone, timedelta
import json
import paho.mqtt.client as mqtt
import random

mqtt_server = "mqtt.energydata.dk"
mqtt_port = 1883
mqtt_user = "Username"
mqtt_pass ="Password"

def on_connect(client, userdata, flags, rc):
    if rc==0:
        client.connected_flag = True
        print("connected OK")
    else:
        print("Bad connection Returned code=",rc)

mqtt.Client.connected_flag = False

client = mqtt.Client("Flexhouse 2 client")
client.username_pw_set(mqtt_user, mqtt_pass)

client.on_connect=on_connect

client.loop_start()
print("Connecting to broker: ", mqtt_server)
client.connect(mqtt_server, mqtt_port, 60)

while not client.connected_flag:
    print("In wait loop")
    time.sleep(1)

print("in Main Loop")

while True:
  my_topic = "9F7J/M4/P2/DTU/PLDK/SYSLAB/studenproject_Q1_2021/SMART_HOME_CONSUM/gas_in_temperature"
  my_value = random.randint(0, 100)

  now = datetime.now(timezone.utc)
  epoch = datetime(1970, 1, 1, tzinfo=timezone.utc) # use POSIX epoch
  my_timestamp = (now - epoch) // timedelta(microseconds=1) // 1000

  json_body = '{"value": ' + str(1.52) + ', "timestamp": ' + str(my_timestamp) + ' }'

  print(json_body)
  client.publish(my_topic, json_body)
  time.sleep(1)

client.loop_stop()  
client.disconnect()
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