linkedin.com
Get LinkedIn conversation attendees
Input
threadUrl requiredURL of the conversation thread, e.g. https://www.linkedin.com/messaging/thread/<id>/ (from list_inbox)
Output
count requiredattendees requiredthreadUrl requiredsource optionalWhich payload the roster came from. conversationParticipants is the authoritative thread roster; messageActors is a fallback built from who has spoken.
threadId optionalgroupChat optionalTrue when the roster holds more than two people (including the viewer).
