# File lib/fog/orchestration/openstack/models/stack.rb, line 15
        def save(options = {})
          if persisted?
            stack_default_options = default_options
            if (options.key?(:template_url))
              stack_default_options.delete(:template)
            end
            service.update_stack(self, stack_default_options.merge(options)).body['stack']
          else
            service.stacks.create(default_options.merge(options))
          end
        end