Optionalcarousel_Optionalcarousel_Optionalcarousel_Number of carousel children (media info carousel_media_count).
Optionalchaining_Reels: zero-based position in the chaining session.
Optionalchaining_Reels: seed media id of the chaining session the reel was opened from.
Optionalchaining_Reels: opaque chaining-session id.
Optionalcomment_Reels: ids of the comment bubbles already shown ("" when there are none).
Optionaldelivery_Optionalfeed_Optionalfloating_Serialized floating-context items ("[]" when there are none).
Optionalinventory_Feed inventory source of the acted-on item; defaults to FEED_LIKE_INVENTORY_SOURCE on the feed surface.
Optionalis_Optionalis_Optionalis_Optionalis_Optionallike_Optionallogging_Feed logging token (ranking_info_token on the note surface).
Optionalmedia_Reels: fraction of the clip watched before the like (0.0–1.0).
Optionalmezql_Feed item mezql_token (empty when absent).
OptionalsurfaceSurface the like is tapped on; defaults to feed. The REST body has the
contextual feed's and the reels viewer's layouts only: the home timeline's
carousel-child like is the GraphQL build's 'timeline' layout
(MediaLikeGraphqlInput) and the app has no REST form of it, so
'timeline' cannot be named here and fall back to the feed's body.
Optionaltap_
Carousel child pk the like applies to (media info
carousel_media_ids[index], no author suffix).