public sealed override void Clear()
{
this.Modify(
() => this.ClearImpl(),
() => DictionaryEventArgs.NewEventClear(this.Keys, this.Values));
}
public sealed override void Add(TK key, TV value)
{
this.Modify(
() => this.AddImpl(key, value),
() => DictionaryEventArgs.NewEventAddRange(new[] { key }, new[] { value }));
}
