new_contents: import webview
  import threading
  
  """
  This example demonstrates how to create and manage multiple windows
  """
  
  def create_new_window():
      # Create new window and store its uid
      child_window = webview.create_window("Window #2", width=800, height=400)
  
      # Load content into both windows
      webview.load_html('<h1>Master Window</h1>')
      webview.load_html('<h1>Child Window</h1>', uid=child_window)
  
  
  if __name__ == '__main__':
      t = threading.Thread(target=create_new_window)
      t.start()
  
      # Master window
      webview.create_window("Window #1", width=800, height=600)
  
subject: Add a simple multiple-window example