/// <summary>
/// Purges all node item.
/// </summary>
/// <param name="iqSender">The <see cref="IClientIqSender"/></param>
/// <param name="to">Jid of the pubsub service for this request</param>
/// <param name="node">The node.</param>
/// <param name="timeout">The timeout in milliseconds.</param>
/// <param name="cancellationToken">The cancellation token used to cancel the request.</param>
/// <returns></returns>
/// <remarks>
/// If a service persists published items, a node owner may want to purge
/// the node of all published items (thus removing all items from the
/// persistent store, with the exception of the last published item,
/// which MAY be cached). It is OPTIONAL for a service to implement this
/// feature.
/// </remarks>
public static async Task <Iq> PurgeNodeAsync(
this IClientIqSender iqSender, Jid to, string node, int timeout, CancellationToken cancellationToken)
{
return(await iqSender.SendIqAsync(PubSubBuilder.PurgeNode(to, node), timeout, cancellationToken));
}
