public byte[] SerializeGraphs(AstarSerializer serializer)
    {
        //System.Diagnostics.Stopwatch stopWatch = new System.Diagnostics.Stopwatch();
        //stopWatch.Start();

        CheckGraphEditors ();

        serializer.OpenSerialize ();

        script.astarData.SerializeGraphsPart (serializer);

        for (int i=0;i<script.graphs.Length;i++) {
            NavGraph graph = script.graphs[i];

            GraphEditor graphEditor = graphEditors[i];

            serializer.AddAnchor ("EditorSettings_"+i);
            ISerializableGraphEditor serializableEditor = graphEditor as ISerializableGraphEditor;
            if (serializableEditor != null) {
                //@Add

                //Set an unique prefix for all variables in this graph
                serializer.sPrefix = i.ToString ()+"E";
                serializer.SerializeEditorSettings (graph,serializableEditor,script);
                //serializableEditor.SerializeSettings (graph,serializer);
            }
        }

        serializer.Close ();

        byte[] bytes = (serializer.writerStream.BaseStream as System.IO.MemoryStream).ToArray ();

        //stopWatch.Stop();
        //Debug.Log ("Serializing Graphs - Took "+stopWatch.Elapsed.ToString ());

        return bytes;
    }