[Python] Cannot connect to azure pubsub group from my streamlit app

I have a streamlit with connect button. On clicking the connect button it should create a connection to azure pubsub. But I am getting the following error. SendMessageError: Failed to send message. The streamlit code is

import azure.messaging.webpubsubclient
import streamlit
from azure.messaging.webpubsubclient import WebPubSubClient
from azure.messaging.webpubsubclient.models import CallbackType, WebPubSubDataType
if streamlit.button("Connect"):
client = WebPubSubClient("wss://blablabla.webpubsub.azure.com/client/hubs/Hub?access_token=access")
with client:
# The client can join/leave groups, send/receive messages to and from those groups all in real-time
group_name = "group1"
client.subscribe(CallbackType.GROUP_MESSAGE, lambda e: print(f"Received message: {e.data}"))
# ...continues the code snippet from above
client.is_connected()
client.join_group(group_name)
# Send a message to a joined group
client.send_to_group(group_name, "hello world", WebPubSubDataType.TEXT)

# In the Console tab of your developer tools found in your browser, you should see the message printed there.
# A client needs to join the group it wishes to receive messages from
# client.join_group(group_name)


In the azure portal I also dont see any hub or group. Do I need to change anything in the portal? How to fix it.

I was expecting to connect to azure pub sub server, but it is not working

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