public override IEnumerable <BookmarkResult> GetBookmarks(BookmarkProviderContext <RunWorkflow> context)
{
var childWorkflowInstanceId = context.GetActivity <RunWorkflow>().GetPropertyValue(x => x.ChildWorkflowInstanceId);
if (string.IsNullOrWhiteSpace(childWorkflowInstanceId))
{
yield break;
}
yield return(new BookmarkResult(new RunWorkflowBookmark
{
ChildWorkflowInstanceId = childWorkflowInstanceId !
}));
