code: def savefig(fname):
      """Launch geoplotlib, saves a screeshot and terminates"""
      _global_config.savefig = fname
      _runapp(_global_config)
  
imports: import base64
  import traceback
  import pyglet
  from geoplotlib.core import GeoplotlibApp
  from core import FONT_NAME
label_desc: Use image node_id 3 for calling a global function with example usage: savefig(fname) without return types