code: def tmpl():
      yield (
          """
      <!DOCTYPE html>
      <html>
      <head>
      <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
      </head>
      <body>
      </body>
      <script>
      </script>
      </html>
      """
      )
  
imports: import json
  import os
  import warnings
  import pytest
  from branca.element import Element
  import folium
  from folium import Choropleth, ClickForMarker, GeoJson, Map, Popup
label_desc: Use image node_id 1 for calling a global function with example usage: tmpl() without return types