Handle missing methods in one place

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main/java/org/zwobble/couscous/values/UnitValue.java b/src/main/java/org/zwobble/couscous/values/UnitValue.java
index 030fb03..8d75529 100644
--- a/src/main/java/org/zwobble/couscous/values/UnitValue.java
+++ b/src/main/java/org/zwobble/couscous/values/UnitValue.java
@@ -1,6 +1,6 @@
 package org.zwobble.couscous.values;
 
-import java.util.List;
+import java.util.Optional;
 
 import lombok.ToString;
 
@@ -12,7 +12,7 @@ public class UnitValue implements InterpreterValue {
     }
 
     @Override
-    public InterpreterValue callMethod(String methodName, List<InterpreterValue> arguments) {
+    public Optional<MethodValue> getMethod(String methodName) {
         throw new UnsupportedOperationException();
     }
 }