Tree graph commands in process

StructureHelperCommon/Infrastructures/Interfaces/IOneVariableFunction.cs

@@ -1,6 +1,7 @@
 using StructureHelperCommon.Infrastructures.Enums;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;