diff --git a/meta/src/main/java/io/art/meta/model/MetaProxy.java b/meta/src/main/java/io/art/meta/model/MetaProxy.java
index f8643a37c..02cb9f629 100644
--- a/meta/src/main/java/io/art/meta/model/MetaProxy.java
+++ b/meta/src/main/java/io/art/meta/model/MetaProxy.java
@@ -2,6 +2,8 @@
 
 import io.art.core.annotation.*;
 import io.art.core.collection.*;
+
+import static io.art.core.caster.Caster.cast;
 import static io.art.core.factory.MapFactory.*;
 import java.util.*;
 import java.util.function.*;
@@ -10,6 +12,22 @@
 public abstract class MetaProxy {
     private final Map<MetaMethod<MetaClass<?>, ?>, Function<Object, Object>> invocations;
 
+    protected void run(Function<Object, Object> function) {
+        function.apply(null);
+    }
+
+    protected <T> T get(Function<Object, Object> function) {
+        return cast(function.apply(null));
+    }
+
+    protected <T> T single(Function<Object, Object> function, Object argument) {
+        return cast(function.apply(argument));
+    }
+
+    protected <T> T multiple(Function<Object, Object> function, Object[] arguments) {
+        return cast(function.apply(cast(arguments)));
+    }
+
     public MetaProxy(Map<MetaMethod<MetaClass<?>, ?>, Function<Object, Object>> invocations) {
         this.invocations = invocations;
     }