Amazon CloudWatch Metric ModelSetupTime not available

The ModelSetupTime metric is not available for monitoring the serverless endpoint(https://docs.aws.amazon.com/sagemaker/latest/dg/serverless-endpoints.html) in Amazon CloudWatch.Able to see only the below mentioned metrics Invocations Invocation5XXErrors Invocation4XXErrors ModelLatency OverheadLatency

Is there any role/configuration changes I have to do to view the ModelSetupTime ?