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  | 
export default {
  sprawl({albumData}) {
    return {albumData};
  },
  query({albumData}, spec) {
    return {
      spec,
      albums: albumData,
      tracks: albumData.map(album => album.tracks),
    };
  },
  relations(relation, query) {
    return {
      page: relation('generateListingPage', query.spec),
      albumLinks:
        query.albums
          .map(album => relation('linkAlbum', album)),
      trackLinks:
        query.tracks
          .map(tracks => tracks
            .map(track => relation('linkTrack', track))),
    };
  },
  generate(relations) {
    return relations.page.slots({
      type: 'chunks',
      chunkTitles:
        relations.albumLinks
          .map(albumLink => ({album: albumLink})),
      listStyle: 'ordered',
      chunkRows:
        relations.trackLinks
          .map(trackLinks => trackLinks
            .map(trackLink => ({track: trackLink}))),
    });
  },
};
  |