annotate initialize method @NotNull

common/addons/config-distributors/src/main/java/com/dfsek/terra/addons/feature/distributor/DistributorAddon.java

@@ -32,13 +32,15 @@ import com.dfsek.terra.api.structure.feature.Distributor;
 import com.dfsek.terra.api.util.function.monad.Monad;
 import com.dfsek.terra.api.util.reflection.TypeKey;
 
+import org.jetbrains.annotations.NotNull;
+
 
 public class DistributorAddon implements MonadAddonInitializer {
     public static final TypeKey<Supplier<ObjectTemplate<Distributor>>> DISTRIBUTOR_TOKEN = new TypeKey<>() {
     };
     
     @Override
-    public Monad<?, Init<?>> initialize() {
+    public @NotNull Monad<?, Init<?>> initialize() {
         return Do.with(
                 Get.eventManager().map(eventManager -> eventManager.getHandler(FunctionalEventHandler.class)),
                 Get.addon(),