docs: private void addTraceForFrame(WebSocketFrame frame, String type) {
  		Map<String, Object> trace = new LinkedHashMap<>();
  		trace.put("type", type);
  		trace.put("direction", "in");
  		if (frame instanceof TextWebSocketFrame) {
  			trace.put("payload", ((TextWebSocketFrame) frame).text());
  		}
  
  		if (traceEnabled) {
  			websocketTraceRepository.add(trace);
  		}
  	}