Package org.apache.sling.sitemap.builder

## Interface Extension

All Known Subinterfaces:
  `AlternateLanguageExtension`, `GoogleImageExtension`, `GoogleNewsExtension`, `GoogleVideoExtension`

All Known Implementing Classes:
  `AbstractExtension`, `AlternateLanguageExtensionProvider.ExtensionImpl`

    @ProviderType
    public interface Extension

A marker interface used as consumer facing API for custom extensions.

Implementations must extend this interface to provide a sub type of it that can be added to a `Url` using `Url.addExtension(Class)`.