using uCalcSoftware;

var uc = new uCalc();
var t = new uCalc.Transformer();
var myRule = t.FromTo("A", "B");

// Get the parent from the rule
var parent = myRule.ParentTransformer;

// Check if the parent is the original transformer using its unique memory index
Console.WriteLine(parent.MemoryIndex == t.MemoryIndex);