public async Task InitializeAsync() { var collectionLink = await Client.GetOrCreateCollectionAsync(Configuration.Collection, Configuration.CollectionTier); storedProcedureLink = await Client.CreateStoredProcedureAsync(collectionLink, Configuration.StoredProcName, Configuration.StoredProcBody); buffer = new FastForwardBuffer <BulkItemSurrogate>(); surrogate = new LengthCappedEnumerableSurrogate(buffer, Configuration.BatchSize, Configuration.MaxScriptSize); activeBulkItems = new ConcurrentDictionary <int, TaskCompletionSource <object> >(); flushSemaphore = new SemaphoreSlim(1, 1); }