def update(resource_group_name, topic_name, topic_update_parameters, custom_headers:nil)
      response = update_async(resource_group_name, topic_name, topic_update_parameters, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
def update(resource_group_name, topic_name, topic_update_parameters, custom_headers:nil)
      response = update_async(resource_group_name, topic_name, topic_update_parameters, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
Update a topic

 Asynchronously updates a topic with the specified parameters.

 @param resource_group_name [String] The name of the resource group within the
 user's subscription.
 @param topic_name [String] Name of the topic
 @param topic_update_parameters [TopicUpdateParameters] Topic update
 information
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.

 @return [Topic] operation results.