1. ASG has a property MetricsCollection. It is off by default.
   https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-as-group.html#cfn-autoscaling-autoscalinggroup-autoscalinggroupname

2. CfnAutoScalingGroupProps supports this property

3. AutoScalingGroup class do not have any means to set this property up
   https://github.com/aws/aws-cdk/blob/v1.25.0/packages/@aws-cdk/aws-autoscaling/lib/auto-scaling-group.ts#L495

Environment

• CLI Version : 1.25.0
• Framework Version:
• OS : MacOs
• Language : TypeScript

This is 🐛 Bug Report