Extracts the main ARN name from the full ARNS name.
the main ARN name (everything after the underscore if undername exists, or the full name if top-level)
Extracts the undername portion from the full ARNS name.
the undername if present, undefined if this is a top-level ARN
Checks if this ARNS name contains an undername.
true if the name contains an underscore, indicating an undername is present
Represents a full ARNS name that can be either:
The underscore character (_) is used as a delimiter between the undername and the main ARN name.