/// <summary>
/// Gets a <see cref="ExtendedDataCollection"/> from the <see cref="ExtendedDataCollection"/>
/// </summary>
/// <param name="extendedData">
/// The extended Data.
/// </param>
/// <returns>
/// The <see cref="ExtendedDataCollection"/>.
/// </returns>
public static ExtendedDataCollection GetExtendedDataCollection(this ExtendedDataCollection extendedData)
{
return(extendedData.ContainsExtendedDataSerialization()
? new ExtendedDataCollection(extendedData.GetValue(Constants.ExtendedDataKeys.ExtendedData))
: null);
}