/// <summary>
 /// Start garbage collection on deleted storage objects.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='resourceGroupName'>
 /// Resource group name.
 /// </param>
 /// <param name='farmId'>
 /// Farm Id.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task BeginStartGarbageCollectionAsync(this IFarmsOperations operations, string resourceGroupName, string farmId, CancellationToken cancellationToken = default(CancellationToken))
 {
     (await operations.BeginStartGarbageCollectionWithHttpMessagesAsync(resourceGroupName, farmId, null, cancellationToken).ConfigureAwait(false)).Dispose();
 }