code: public Set<CoreDocumentSynchronizationConfig> getSynchronizedDocuments(
        final MongoNamespace namespace
    ) {
      this.waitUntilInitialized();
      try {
        ongoingOperationsGroup.enter();
        return this.syncConfig.getSynchronizedDocuments(namespace);
      } finally {
        ongoingOperationsGroup.exit();
      }
    }
docs: Returns the set of synchronized documents in a namespace.
  
  @param namespace the namespace to get synchronized documents for.
  @return the set of synchronized documents in a namespace.