/// <summary>
/// Update event subscription of a system topic.
/// </summary>
/// <remarks>
/// Update an existing event subscription of a system topic.
/// </remarks>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='resourceGroupName'>
/// The name of the resource group within the user's subscription.
/// </param>
/// <param name='systemTopicName'>
/// Name of the system topic.
/// </param>
/// <param name='eventSubscriptionName'>
/// Name of the event subscription to be created. Event subscription names must
/// be between 3 and 100 characters in length and use alphanumeric letters
/// only.
/// </param>
/// <param name='eventSubscriptionUpdateParameters'>
/// Updated event subscription information.
/// </param>
public static EventSubscription BeginUpdate(this ISystemTopicEventSubscriptionsOperations operations, string resourceGroupName, string systemTopicName, string eventSubscriptionName, EventSubscriptionUpdateParameters eventSubscriptionUpdateParameters)
{
return(operations.BeginUpdateAsync(resourceGroupName, systemTopicName, eventSubscriptionName, eventSubscriptionUpdateParameters).GetAwaiter().GetResult());
}
