public Validator <T> Ensure(Predicate <T> condition, string errorMessage)
{
Action accumulate = () =>
AccumulatedErrors.Add(errorMessage);
On <T> .Values(Items)
.WhenEachNot(condition)
.Then(accumulate);
return(this);
}
public static OnSingle <object> Value(object value)
{
return(On <object> .Value(value));
}