@Override
  public void createFunction(
      ObjectPath functionPath, CatalogFunction function, boolean ignoreIfExists) {
    throw new UnsupportedOperationException("Unsupported operation: create function.");
  }
Available Flink catalogs for Unified Catalog.

<p>May include: Iceberg, Mixed and Paimon Catalogs, etc.
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/catalog/FlinkUnifiedCatalog.java