code: def get_map_image(url, dest_path=None):
          
          image = requests.get(url, stream=True, timeout=10)
  
          if dest_path:
              image_url = url.rsplit('/', 2)[1] + '-' + url.rsplit('/', 1)[1]
              image_filename = image_url.split('?')[0]
              dest = os.path.join(dest_path, image_filename)
              image.raise_for_status()
              with open(dest, 'wb') as data:
                  image.raw.decode_content = True
                  shutil.copyfileobj(image.raw, data)
  
          return image.raw
docs: Return a requested map from a robot.
  
          :return: