/// <summary>
/// Get the next page of shipments based on the original parameters used to generate the list
/// </summary>
/// <param name="client">Easy post client to use</param>
/// <returns>A new ShipmentList instance.</returns>
public async Task <TrackerList> Next(
IEasyPostClient client)
{
var options = Options ?? new TrackerListOptions();
options.BeforeId = Trackers.Last().Id;
return(await client.ListTrackers(options));
}