Sets the CustSubscriptionId property

C# |
[ObsoleteAttribute("The With methods are obsolete and will be removed in version 2 of the AWS SDK for .NET. See http://aws.amazon.com/sdkfornet/#version2 for more information.")] public EventSubscription WithCustSubscriptionId( string custSubscriptionId )

- custSubscriptionId (String)
- The value to set for the CustSubscriptionId property

this instance