Not able to use my agents in playground

i am trying to use the same example playground program, but ended up with the error. i tried with different ways to use playground, but its not successful. here i attached my code. let me know if you need any other details.

from agno.playground import Playground, serve_playground_app
from agno_assist import agno_assist
from simple_agent import simple_agent

Create and configure the playground app

app = Playground(
agents=[
simple_agent,
agno_assist,
]
).get_app()

playground = Playground(
agents=[
simple_agent,
agno_assist,
],
app_id=“agents-from-scratch-playground-app”,
name=“Agents from Scratch Playground”,
)

app = playground.get_app()

if name == “main”:
playground.serve(app=“playground:app”, reload=True)

Hi @Gayathri, thanks for reaching out and supporting Agno. I’ve shared this with the team, we’re working through all requests one by one and will get back to you soon.
If it’s urgent, please let us know. We appreciate your patience!

hey @Gayathri could you please make sure you are following right steps here : Playground - Agno
this is the full example Agno Assist - Agno