How to see area and boundary measurement with Folium Draw plugin

Question

I'm working with Jupyter and Folium , and using the Draw plugin. In my code I have:

from folium.plugins import Draw
m = Map(location=CENTER, zoom_start=15)
# Add GeoJSON data layer to the map
GeoJson(geojson_data).add_to(m)

# Draw(export=True).add_to(m)
Draw(
export=True,
filename="my_data.geojson",
position="topleft",
draw_options={"polyline": {"allowIntersection": False,"showLength":True},"polygon": {"showArea": True,"showLength":True}},
# edit_options={"poly": {"allowIntersection": False}}
).add_to(m)

After completing a polygon, I don't see the area or length of the boundary, even though the option says true. Why not?