Check and convert the max trip duration input.
assign_max_trip_duration(
max_trip_duration,
modes,
max_walk_time,
max_bike_time
)An integer representing the maximum trip duration in minutes.
A number.
Other assigning functions:
assign_decay_function(),
assign_departure(),
assign_drop_geometry(),
assign_max_street_time(),
assign_mode(),
assign_opportunities(),
assign_osm_link_ids(),
assign_points_input(),
assign_shortest_path()