Chloropleth in FOLIUM

import pandas as pd
import os
import folium

state_geo = 'us-states.json'

state_unemployment = 'US_COVID.csv'
state_data = pd.read_csv(state_unemployment)

map = folium.Map(location=[48, -102], zoom_start=3)

folium.Choropleth(
    geo_data=state_geo,
    name='choropleth',
    data=state_data,
    columns=['State', 'Cases'],
    key_on='feature.id',
    fill_color='YlOrRd',
    fill_opacity=0.8,
    line_opacity=0.4,
    legend_name='Covid Cases(%)'
).add_to(m)

folium.LayerControl().add_to(m)

map