Specifies the order for results. If true, results are returned in ascending creation order.
The marker for the next set of results.
The result page size.
The principal. Valid principals are CertificateArn (arn:aws:iot:region:accountId:cert/certificateId), thingGroupArn (arn:aws:iot:region:accountId:thinggroup/groupName) and CognitoId (region:id).