def batch_connect_config(template = nil)
      if template
        @batch_connect_config.fetch(template.to_sym, {}).to_h.symbolize_keys.merge(template: template.to_sym)
      else
        @batch_connect_config
      end
    end
def batch_connect_config(template = nil)
      if template
        @batch_connect_config.fetch(template.to_sym, {}).to_h.symbolize_keys.merge(template: template.to_sym)
      else
        @batch_connect_config
      end
    end
The batch connect template configuration used for this cluster
 @param template [#to_sym, nil] the template type
 @return [Hash] the batch connect configuration