Trying to display an HTML file in Anvil, how to do it?

What do you mean by:
(If I add width and height parameters to your original colab code I do see a map)
What did you add?
Here is my full Colab code, can you tell me what should I add to it?

import os
import pickle
import datetime
import folium

!pip install anvil-uplink

import anvil.server

anvil.server.connect("<uplink key>")

m = folium.Map(location=[45.5236, -122.6750], zoom_start=13)

@anvil.server.callable
def get_map_html():
  html_string = m.get_root().render()
  return html_string
  
folium.__version__

anvil.server.wait_forever()