STS or IAM ARN representing the identity of API Caller. SDK users cannot populate this and this value is calculated automatically if ConnectUserArn is not provided.
*)
}
Sourceval make : ?connectUserArn:ARN.t->?aWSIdentityArn:ARN.t->unit ->t
Sourceval to_value : t->[> `Structure of (string * [> `String of ARN.t ]) list ]