PowerShell to enumerate all workflows in farm

Hello:

Is there a handy powershell script that we could use to enumerate all SP 2010 and 2013 workflows (including designer workflows) in our farm? I was able to find this script but it does not list all the workflows in the farm:

https://social.technet.microsoft.com/Forums/office/en-US/12a2f1d3-46b6-45a3-957e-4726c5c2be75/powershell-script-to-find-all-list-workflows-in-a-farm?forum=sharepointgeneralprevious

Any pointers?

Thanks!