/// <summary>
/// List all the subscriptions under a specified topic.
/// <see href="https://msdn.microsoft.com/en-us/library/azure/mt639400.aspx" />
/// </summary>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='nextPageLink'>
/// The NextLink from the previous successful call to List operation.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task <IPage <SubscriptionInner> > ListByTopicNextAsync(this ISubscriptionsOperations operations, string nextPageLink, CancellationToken cancellationToken = default(CancellationToken))
{
using (var _result = await operations.ListByTopicNextWithHttpMessagesAsync(nextPageLink, null, cancellationToken).ConfigureAwait(false))
{
return(_result.Body);
}
}