/// <summary>
 /// Deletes an existing attestation at subscription scope.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='subscriptionId'>
 /// The ID of the target subscription.
 /// </param>
 /// <param name='attestationName'>
 /// The name of the attestation.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task DeleteAtSubscriptionAsync(this IAttestationsOperations operations, string subscriptionId, string attestationName, CancellationToken cancellationToken = default(CancellationToken))
 {
     (await operations.DeleteAtSubscriptionWithHttpMessagesAsync(subscriptionId, attestationName, null, cancellationToken).ConfigureAwait(false)).Dispose();
 }