Expand world key API

paper-api/src/main/java/org/bukkit/RegionAccessor.java

@@ -18,7 +18,7 @@ import org.jetbrains.annotations.Nullable;
  * A RegionAccessor gives access to getting, modifying and spawning {@link Biome}, {@link BlockState} and {@link Entity},
  * as well as generating some basic structures.
  */
-public interface RegionAccessor {
+public interface RegionAccessor extends Keyed { // Paper
 
     /**
      * Gets the {@link Biome} at the given {@link Location}.
@@ -452,5 +452,14 @@ public interface RegionAccessor {
      */
     @NotNull
     io.papermc.paper.world.MoonPhase getMoonPhase();
+
+    /**
+     * Get the world's key
+     *
+     * @return the world's key
+     */
+    @NotNull
+    @Override
+    NamespacedKey getKey();
     // Paper end
 }