ReadonlychainingOptional ReadonlychainingPosition?: string | numberZero-based position in the chaining session.
Optional ReadonlychainingSeedMediaId?: stringSeed media id of the chaining session (chaining_seed_media_id), in the form the caller holds it.
Optional ReadonlychainingSessionId?: stringOpaque chaining-session id.
Optional ReadonlyclientPosition?: string | numberClient position in the viewer.
Optional ReadonlymediaPctWatched?: string | numberPercentage of the clip watched before the like (0–100), the app's measurement.
Optional ReadonlyrankingSessionId?: stringRanking session id.
Optional ReadonlystoryRankingToken?: stringThe reel's story ranking token.
Readonlystart
The facts the viewer carries beside its cursor, from the input it opened with: the chaining context its reels' like and comments echo, and where the viewer's first reel sits (the chaining session begins there, at position 0).