@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NAME_FIELD_NUMBER;
    hash = (53 * hash) + getName().hashCode();
    if (hasTtl()) {
      hash = (37 * hash) + TTL_FIELD_NUMBER;
      hash = (53 * hash) + getTtl().hashCode();
    }
    if (hasBackupId()) {
      hash = (37 * hash) + BACKUP_ID_FIELD_NUMBER;
      hash = (53 * hash) + getBackupId().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Optional. The id of the backup to be created. If not specified, the
default value ([YYYYMMDDHHMMSS]_[Shortened Instance UID] is used.
</pre>

<code>optional string backup_id = 3 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The bytes for backupId.
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/BackupInstanceRequest.java