diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UpdateBoundary.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UpdateBoundary.java
index b73c2ec..f2391dc 100644
--- a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UpdateBoundary.java
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UpdateBoundary.java
@@ -1,6 +1,9 @@
 package org.ntlab.radishforandroidstudio.cactusClient.UseCases;
 
+import org.ntlab.radishforandroidstudio.framework.gameMain.GameBaseModel;
+
 public interface UpdateBoundary {
 
     void onUpdate(long interval);
+    void addModels(GameBaseModel model);
 }