System.Dynamic.BindingRestrictions.ToExpression C# (CSharp) Метод

        public Expression ToExpression() => GetExpression();

 public void AddRestriction(BindingRestrictions/*!*/ restriction) {
     if (_treatRestrictionsAsConditions) {
         AddCondition(restriction.ToExpression());
     } else {
         Add(restriction);
     }
 }