Creates a topic to which notifications can be published. Users can create
            at most 3000 topics.
            
 Declaration Syntax
 Declaration Syntax| C# | 
CreateTopicResponse CreateTopic( CreateTopicRequest request )
 Parameters
 Parameters- request (CreateTopicRequest)
- Create Topic request
 Return Value
 Return ValueCreate Topic  Response from the service
 Remarks
 Remarks
            This action is idempotent, so if the requester
            already owns a topic with the specified name, that topic's ARN will be
            returned without creating a new topic.