diff --git a/src/Model/BaseMapper.php b/src/Model/BaseMapper.php
index 88a3572..7e55e72 100644
--- a/src/Model/BaseMapper.php
+++ b/src/Model/BaseMapper.php
@@ -3,5 +3,7 @@
 namespace ctiso\Model;
 
 abstract class BaseMapper {
-    abstract function getAllAsOptions(): array;
+    function getAllAsOptions(): array {
+        return [];
+    }
 }
\ No newline at end of file