content: #!/usr/bin/env python
  
  """Echo server using the asyncio API."""
  
  import asyncio
  from websockets.asyncio.server import serve
  
  
  async def echo(websocket):
      async for message in websocket:
          await websocket.send(message)
  
  
  async def main():
      async with serve(echo, "localhost", 8765) as server:
          await server.serve_forever()
  
  
  if __name__ == "__main__":
      asyncio.run(main())
  