Ids the app keeps for one search interaction and threads across the typeahead and SERP requests (Android 450):
searchSessionId
account_serp
typeaheadSessionId
clientUuidRankToken
rank_token
serpSessionId
serp_session_id
qpl_join_id
Optional
Readonly
Ids the app keeps for one search interaction and threads across the typeahead and SERP requests (Android 450):
searchSessionId— one per search session, shared by the typeahead and theaccount_serprequest;typeaheadSessionId/clientUuidRankToken— one per typeahead (typing) session; the SERP response'srank_tokenechoes the rank token without dashes;serpSessionId— one per SERP, sent as bothserp_session_idandqpl_join_id.