diff --git a/FreeTubeSyncer/Models/DatabaseModels/IDataModel.cs b/FreeTubeSyncer/Models/DatabaseModels/IDataModel.cs
index 32f5341..f6c7672 100644
--- a/FreeTubeSyncer/Models/DatabaseModels/IDataModel.cs
+++ b/FreeTubeSyncer/Models/DatabaseModels/IDataModel.cs
@@ -4,4 +4,6 @@ public interface IDataModel
 {
     string Id();
     bool EqualId(string oid);
+    void MarshalData(string id, string data);
+    string JsonData();
 }
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