protected internal override Expression VisitInterpolatedString(InterpolatedStringCSharpExpression node)
            {
                VisitedInterpolatedString = true;

                return(base.VisitInterpolatedString(node));
            }
 protected internal virtual Expression VisitInterpolatedString(InterpolatedStringCSharpExpression node) =>
 node.Update(
     Visit(node.Interpolations, VisitInterpolation)
     );