Function convertJourneyStep

Returns (
    js: JourneyStep<
        TimeVal,
        SharedID,
        SharedID,
        V,
        CA,
        "DEPARTURE"
        | "FOOT"
        | "VEHICLE",
        true,
    >,
) =>
    | {
        boardedAt?: number
        | `id-${number}`;
        label: Label<TimeVal, SharedID, SharedID, V, CA>;
        transfer?: { length: number; to: undefined | number | `id-${number}` };
        compare(other: JourneyStep): null | number;
    }
    | {
        boardedAt: SharedID;
        label: Label<TimeVal, SharedID, SharedID, V, CA>;
        transfer: { length: number; to: undefined | number | `id-${number}` };
        compare(other: JourneyStep): null | number;
    }
    | {
        boardedAt: SharedID;
        label: Label<TimeVal, SharedID, SharedID, V, CA>;
        route: Route<TimeVal, SharedID, SharedID>;
        transfer?: { length: number; to: undefined | number | `id-${number}` };
        tripIndex: number;
        compare(other: JourneyStep): null | number;
    }