+function fetchVideo (id: number | string, fetchType: 'all', userId?: number): Bluebird<MVideoFullLight>
+function fetchVideo (id: number | string, fetchType: 'only-immutable-attributes'): Bluebird<MVideoImmutable>
+function fetchVideo (id: number | string, fetchType: 'only-video', userId?: number): Bluebird<MVideoThumbnail>
+function fetchVideo (id: number | string, fetchType: 'only-video-with-rights', userId?: number): Bluebird<MVideoWithRights>
+function fetchVideo (id: number | string, fetchType: 'id' | 'none', userId?: number): Bluebird<MVideoIdThumbnail>
+function fetchVideo (
+ id: number | string,
+ fetchType: VideoFetchType,
+ userId?: number
+): Bluebird<MVideoFullLight | MVideoThumbnail | MVideoWithRights | MVideoIdThumbnail | MVideoImmutable>
+function fetchVideo (
+ id: number | string,
+ fetchType: VideoFetchType,
+ userId?: number
+): Bluebird<MVideoFullLight | MVideoThumbnail | MVideoWithRights | MVideoIdThumbnail | MVideoImmutable> {