Feature checklist: - [x] Create `EncryptionInfo` class - [x] Create `Status` class for `EncryptionInfo.encryption_status` field - [x] Add `encryption_info` field to Backup - [x] Add `get_encryption_info` method to `Table` - [x] Add `kms_key_name` field to Cluster See also the [Java reference implementation](https://github.com/googleapis/java-bigtable/pull/656).
Feature checklist:
EncryptionInfoclassStatusclass forEncryptionInfo.encryption_statusfieldencryption_infofield to Backupget_encryption_infomethod toTablekms_key_namefield to ClusterSee also the Java reference implementation.