# AddPlaylistContentsMetadata ## Fields | Field | Type | Required | Description | Example | | -------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- | | `ratingKey` | *Optional* | :heavy_minus_sign: | N/A | 94 | | `key` | *Optional* | :heavy_minus_sign: | N/A | /playlists/94/items | | `guid` | *Optional* | :heavy_minus_sign: | N/A | com.plexapp.agents.none://972e3047-83d6-4848-a000-261f0af26ba2 | | `type` | *Optional* | :heavy_minus_sign: | N/A | playlist | | `title` | *Optional* | :heavy_minus_sign: | N/A | A great playlist | | `summary` | *Optional* | :heavy_minus_sign: | N/A | One of my great playlists | | `smart` | *Optional* | :heavy_minus_sign: | N/A | false | | `playlistType` | *Optional* | :heavy_minus_sign: | N/A | video | | `composite` | *Optional* | :heavy_minus_sign: | N/A | /playlists/94/composite/1705800070 | | `duration` | *Optional* | :heavy_minus_sign: | N/A | 423000 | | `leafCount` | *Optional* | :heavy_minus_sign: | N/A | 3 | | `addedAt` | *Optional* | :heavy_minus_sign: | N/A | 1705716458 | | `updatedAt` | *Optional* | :heavy_minus_sign: | N/A | 1705800070 |