Sets the Amazon Reference Name (ARN) of the topic whose access control policy you want to modify.

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 RemovePermissionRequest WithTopicArn( string topicArn )

- topicArn (String)
- The Amazon Reference Name (ARN) of a topic .

this instance