public static void SetStreamValue(this QueryStructuralValue instance, string namedStream, AstoriaQueryStreamValue value)
{
ExceptionUtilities.CheckArgumentNotNull(instance, "instance");
ExceptionUtilities.CheckStringArgumentIsNotNullOrEmpty(namedStream, "namedStream");
instance.AssertPropertyType <AstoriaQueryStreamType>(namedStream);
instance.SetValue(namedStream, value);
}