/// <summary> Changes the current task's TaskKey.
/// Returns the current progress task, so that methods may be chained.
/// </summary>
/// <param name="newTaskKey">Identifies the task being performed. Can be used for displaying progress.</param>
public ProgressEnumerator <T> SetTaskKey(string newTaskKey)
{
progress.SetTaskKey(newTaskKey);
return(this);
}
