Parameter bound Dynamo script

Hi,
I was wondering is there a possibility to create a Dynamo script which will tell me to which category is parameter bound tot. I need to delete all parameters from my project which are empty and I wanted to create a list that will contain such parameters. I used Clockwork node Document.ProjectParameters to generate all project parameters I none list but I lack knowledge to filter them now. Can anyone give me some advice what would be the best options to make this?
Thanks in advance

From my understanding, you can’t create a project parameter or project shared parameter without assigning it to at least one category. So you would actually need to get a list of categories, use the “All Elements of Category” node to get a list of the categories that do not have an instance of an element in the model and then go from there. Not in the position currently to provide additional input on how to proceed, so hopefully someone else can help from here.

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