/// <summary>
 /// Provisions a sample bucket: beer-sample, travel-sample or game-sim.
 /// </summary>
 /// <param name="bucketName">Name of the bucket.</param>
 /// <param name="hostname">The hostname.</param>
 /// <returns></returns>
 public Task <IResult> ProvisionSampleBucketAsync(string bucketName, string hostname = null)
 {
     hostname = hostname ?? _cluster.Configuration.Servers.First().Host;
     return(_clusterManager.AddSampleBucketAsync(hostname, bucketName));
 }