text: def handle_request(client_request):
  	"""
  	This function will be called when a request is received from the client.
  	It must return the request to be forwarded to the server (or proxy if specified).
  	"""
  
  	modified_request = client_request.replace(b'original', b'modified')
  	
  	return modified_request
  
  def handle_response(server_response):
  	"""
  	This function will be called when a response is received from the server.
  	It must return the response to be fowarded to the client (or proxy if specified).
  	"""
  
  	modified_response = server_response.replace(b'example', b'testing')
  
  	return modified_response
  