gistfile1.txt

public asbtract BaseViewModel : INotifyPropertyChanged
{

		protected async Task RunBusyAction (Task busyTask)
		{
			if(IsBusy)
			return;
				
			IsBusy = true;
			
			try
			{
				await busyTask.ConfigureAwait(false);
			}
			finally
			{
			 		IsBusy = false;
			}
		}
}