OptionaldurationOptionalentrancesparse & expose entrances of stops/stations?
Optionalframesnr of frames to compute
Optionalpolylinesreturn a shape for the trip?
Optionalproductsoptionally an object of booleans
Optionalresultsmaximum number of vehicles
Optionalsubparse & expose sub-stops of stations?
Optionalwhenwhen
compute frames for the next n seconds