public Shipment(Address originAddress, Address destinationAddress, List<Package> packages)
{
this.OriginAddress = originAddress;
this.DestinationAddress = destinationAddress;
this.Packages = packages.AsReadOnly();
this._rates = new List<Rate>();
}
/// <summary>
/// Retrieves rates for all of the specified providers using the specified address and packages information.
/// </summary>
/// <param name="originAddress">An instance of <see cref="Address"/> specifying the origin of the shipment.</param>
/// <param name="destinationAddress">An instance of <see cref="Address"/> specifying the destination of the shipment.</param>
/// <param name="packages">An instance of <see cref="PackageCollection"/> specifying the packages to be rated.</param>
/// <returns>A <see cref="Shipment"/> instance containing all returned rates.</returns>
public Shipment GetRates(Address originAddress, Address destinationAddress, List<Package> packages)
{
Shipment shipment = new Shipment(originAddress, destinationAddress, packages);
return this.getRates(ref shipment);
}