traceLevel as number, message as text, optional value as nullable any, optional delayed as nullable any) as nullable anymessage, if tracing is enabled, and returns value. An optional parameter delayed specifies whether to delay the evaluation of value until the message is traced. traceLevel can take one of the following values: TraceLevel.Critical TraceLevel.Error, TraceLevel.Warning, TraceLevel.Information, TraceLevel.Verbose.