/// <summary>
/// Creates a <see cref="Sink{TIn,TMat}"/> to publish messages in batches
/// to a SQS queue using a <paramref name="client"/>.
/// See also: https://getakka.net/articles/streams/builtinstages.html#groupedwithin
/// </summary>
public static Sink <IEnumerable <SendMessageRequest>, Task> BatchedMessageSink(IAmazonSQS client, string queueUrl, SqsPublishBatchSettings settings = null) =>
SqsPublishFlow.Batch(client, queueUrl, settings)
.ToMaterialized(Sink.Ignore <IReadOnlyList <SqsPublishResultEntry> >(), Keep.Right);
/// <summary>
/// Creates a <see cref="Sink{TIn,TMat}"/> that groups messages and publishes
/// them in batches to a SQS queue using a <paramref name="client"/>.
/// See also: https://getakka.net/articles/streams/builtinstages.html#groupedwithin
/// </summary>
public static Sink <SendMessageRequest, Task> GroupedMessageSink(IAmazonSQS client, string queueUrl, SqsPublishGroupedSettings settings = null) =>
SqsPublishFlow.Grouped(client, queueUrl, settings)
.ToMaterialized(Sink.Ignore <SqsPublishResultEntry>(), Keep.Right);