Firstly would like to see the Timetable disambiguation response corrected to show to correct URL:
https://api.tfl.gov.uk/Line/metropolitan/Timetable/940GZZLUPNR?direction=inbound (see techforum issue: how-do-i-get-timetable-info)
This response is 300Kb which is quite large for my little Arduino to process for my Bedroom Departure Board: https://hackaday.io/project/74922-tube-trainbus-bedroom-departure-board !
Could i add a filter to:
(a) cut out the stations and stops top level entries (which are 120Kb between them), and
(b) select a particular subkey tabletable/routes/schedules/knownJourneys/name (day of week)?