crossAccountRoleArns
Defines a list of role Amazon Resource Names (ARNs) to be used in other accounts. These ARNs are used for querying purposes while importing resources and assessing your application.
These ARNs are required only when your resources are in other accounts and you have different role name in these accounts. Else, the invoker role name will be used in the other accounts.
These roles must have a trust policy with
iam:AssumeRole
permission to the invoker role in the primary account.