Ditto tagging with number of documents: tag (#)

I’m trying to find out how to include the number of tagged documents with ditto tagging.

An example would be: tagone(3), tagtwo(6), tagthree(4).

I’ve seen it being done, but can’t find info on how to do it.

Wondering if anyone knows where documentation is located on doing this, or can tell me how it’s done.

How are the files done, if they are children of other files and being called by ditto you can use childrencount ( http://modxcms.com/extras/package/67 )

I think TvTagCloud snippet can do that.