federatedUser
construct an aws.sdk.kotlin.services.sts.model.FederatedUser inside the given block
Identifiers for the federated user associated with the credentials (such as arn:aws:sts::123456789012:federated-user/Bob
or 123456789012:Bob
). You can use the federated user's ARN in your resource-based policies, such as an Amazon S3 bucket policy.