What are some use cases for node.addMetaData?

[chanh-t]

What are some situations where you used node.addMetaData or you've seen?

Adds a metadata entry to this construct. Entries are arbitrary values and will also include a stack trace to allow tracing back to the code location for when the entry was added. It can be used, for example, to include source mapping in CloudFormation templates to improve diagnostics.