from_stop_id,to_stop_id,transfer_type,min_transfer_time
20260,20260,1,
20285,20285,0,
20285,4230557,0,
20293,20293,0,
20308,20308,0,
20382,20382,0,
4230553,4230553,0,
4230557,20285,0,
4230557,4230557,0,
