我想使用指标筛选器来识别404、500等错误。当我的Lambda返回错误时，日志组显示以下内容
....
Failed to create contact. Got Exception:
com.amazonaws.services.lcms.model.ContactFlowIdNotFoundException:
null (Service: lcms; Status Code: 404; Error Code:
ContactFlowIdNotFoundException; Request ID: 6c82d3c5-3bca-xxxx-b489-xxxxx) at
com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(Am
....
当状态代码在400秒内时，我将如何应用度量过滤器来显示？