public void RefreshVariableCacheHelper(Flowchart f, ref List <Variable> referencedVariables)
{
if (variable is StringVariable asStringVar && asStringVar != null && !string.IsNullOrEmpty(asStringVar.Value))
{
f.DetermineSubstituteVariables(asStringVar.Value, referencedVariables);
}
if (!string.IsNullOrEmpty(data.stringData.Value))
{
f.DetermineSubstituteVariables(data.stringData.Value, referencedVariables);
}
}