public IUIThreadOperationContext BeginExecute(UIThreadOperationExecutionOptions executionOptions)
 {
     return(BestImplementation.BeginExecute(executionOptions));
 }
 public IUIThreadOperationContext BeginExecute(string title, string defaultDescription, bool allowCancellation, bool showProgress)
 {
     return(BestImplementation.BeginExecute(title, defaultDescription, allowCancellation, showProgress));
 }