public ForClassElseEndIf <T, ForClassElseEndIf <T, ENDIF> > If(Expression <Func <T, bool> > conditionalExpression)
{
var invoker = _rulesEngine.RegisterCondition(conditionalExpression);
return(new ForClassElseEndIf <T, ForClassElseEndIf <T, ENDIF> >(invoker.IfTrueEngine, invoker, this));
}