# IDurableDictionaryCommandCodec<TKey, TValue>.WriteSnapshot(IReadOnlyCollection<KeyValuePair<TKey, TValue>>, JournalStreamWriter)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.idurabledictionarycommandcodec-2/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.idurabledictionarycommandcodec-2/methods/)

```csharp
public abstract void IDurableDictionaryCommandCodec<TKey, WriteSnapshot(IReadOnlyCollection<KeyValuePair<TKey, TValue>> items, JournalStreamWriter writer)
```

Writes a snapshot command, deriving the item count from `items`.

### Parameters

- `items` (`IReadOnlyCollection<KeyValuePair<TKey, TValue>>`)
- `writer` (`JournalStreamWriter`)