public com.google.cloud.memorystore.v1beta.PersistenceConfig getPersistenceConfig() {
      if (persistenceConfigBuilder_ == null) {
        return persistenceConfig_ == null
            ? com.google.cloud.memorystore.v1beta.PersistenceConfig.getDefaultInstance()
            : persistenceConfig_;
      } else {
        return persistenceConfigBuilder_.getMessage();
      }
    }
<pre>
Optional. Persistence configuration of the instance.
</pre>

<code>
.google.cloud.memorystore.v1beta.PersistenceConfig persistence_config = 14 [(.google.api.field_behavior) = OPTIONAL];
</code>

@return The persistenceConfig.
java-valkey/proto-google-cloud-valkey-v1beta/src/main/java/com/google/cloud/memorystore/v1beta/Instance.java