    # File lib/fog/aws/models/elasticache/cluster.rb, line 42
            def save
              requires :id

              parameter_group     ||= Hash.new
              notification_config ||= Hash.new

              connection.create_cache_cluster(
                id, {
                  :node_type                    => node_type,
                  :security_group_names         => security_groups,
                  :num_nodes                    => num_nodes,
                  :auto_minor_version_upgrade   => auto_upgrade,
                  :engine                       => engine,
                  :engine_version               => engine_version,
                  :notification_topic_arn       => notification_config['TopicArn'],
                  :port                         => port,
                  :preferred_availablility_zone => zone,
                  :preferred_maintenance_window => maintenance_window,
                  :parameter_group_name => parameter_group['CacheParameterGroupName'],
                }
              )
            end