/// <summary>
/// Creates new product subscription.
/// </summary>
/// <param name='operations'>
/// Reference to the
/// Microsoft.Azure.Management.ApiManagement.ISubscriptionsOperations.
/// </param>
/// <param name='resourceGroupName'>
/// Required. The name of the resource group.
/// </param>
/// <param name='serviceName'>
/// Required. The name of the Api Management service.
/// </param>
/// <param name='sid'>
/// Required. Identifier of the subscription.
/// </param>
/// <param name='parameters'>
/// Required. Create parameters.
/// </param>
/// <returns>
/// A standard service response including an HTTP status code and
/// request ID.
/// </returns>
public static Task <AzureOperationResponse> CreateAsync(this ISubscriptionsOperations operations, string resourceGroupName, string serviceName, string sid, SubscriptionCreateParameters parameters)
{
return(operations.CreateAsync(resourceGroupName, serviceName, sid, parameters, CancellationToken.None));
}