Function searchViewportView

search_viewport_view — the field's list is in front with its rows: after a typed text's answer (source typeahead), and on the empty open's recent list (source null_state_recent, not logged yet). The event's source is the app's vocabulary for the whole list; a row that came from the typing session's memory of an answer names its own source in results_source_list (query_cache, no request). The row lists are the rows the field shows, as instagram_search_results names them, with each row's section and keyword context (results_section_list, results_keyword_context_list) and its position; typeahead_rank_token_list holds each user row's own rank token (null for a keyword). The typing session's ids are the same as the typing events'; rank_token and the typeahead's own rank token are null on this event (the recordings' values).