text: import streamlit as st
  # To make things easier later, we're also importing numpy and pandas for
  # working with sample data.
  import numpy as np
  import pandas as pd
  
  chart_data = pd.DataFrame(
       np.random.randn(20, 3),
       columns=['a', 'b', 'c'])
  
  st.line_chart(chart_data)
  
  map_data = pd.DataFrame(
      np.random.randn(1000, 2) / [50, 50] + [37.76, -122.4],
      columns=['lat', 'lon'])
  
  st.map(map_data)
  