asRetentionPeriod
Casts this ArchiveRetention as a RetentionPeriod and retrieves its aws.sdk.kotlin.services.mailmanager.model.RetentionPeriod value. Throws an exception if the ArchiveRetention is not a RetentionPeriod.
Casts this ArchiveRetention as a RetentionPeriod and retrieves its aws.sdk.kotlin.services.mailmanager.model.RetentionPeriod value. Throws an exception if the ArchiveRetention is not a RetentionPeriod.