@type t() :: %MBTA.Model.ScheduleResourceAttributes{
  arrival_time: DateTime.t() | nil,
  departure_time: DateTime.t() | nil,
  direction_id: integer() | nil,
  drop_off_type: integer() | nil,
  pickup_type: integer() | nil,
  stop_headsign: String.t() | nil,
  stop_sequence: integer() | nil,
  timepoint: boolean() | nil
}