def begin_delete(resource_group_name, domain_name, domain_topic_name, custom_headers:nil)
      response = begin_delete_async(resource_group_name, domain_name, domain_topic_name, custom_headers:custom_headers).value!
      nil
    end
def begin_delete(resource_group_name, domain_name, domain_topic_name, custom_headers:nil)
      response = begin_delete_async(resource_group_name, domain_name, domain_topic_name, custom_headers:custom_headers).value!
      nil
    end
Delete a domain topic

 Delete existing domain topic

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