Interface IosAppLaunchFlowOptions

Media ids of the clips tab feed the app cached in an earlier session. The launch checks their shopping eligibility (container_module: clips_viewer_clips_tab); no launch request fetches them, so the request is sent only when the caller supplies them.

Media ids of the explore grid cached in an earlier session, checked the same way (container_module: explore_popular); sent only when supplied.

Accepted for callers that pass it; the wire does not depend on it. Each stage issues its requests as one batch, so a request never sees a state change (a session-token rotation, the app-start window closing) that an answer of its own stage brought — the burst is the same for any value.

The user ids of the Direct inbox the app keeps locally (synced over its realtime channel, not fetched by any launch request). The app sends them in feed/get_latest_reel_media (flow 0038); the request is sent only when the caller supplies them.

The story media id the app reports as last seen (client_seen_store_media_list of feed/timeline; the same id in appstart1 and launch2b, two hours apart). Kept by the device from an earlier session; sent only when supplied.

What the user viewed in the feed of an earlier session, as the app reports it in feed/timeline's feed_view_info (one entry per viewed media: inventory_source, author_id, ts, time_info, media_id, media_pct, client_position, surface, media_type, product_type). The library shows no media, so it knows of no view: the caller says what its user viewed. Without it the list is empty.

The device's APNs token. push/register (flow 0033) is sent only with it: the token is issued by Apple to the real device and the library never invents one.