How to find which individual sub-group was collapsed?

[TeeJT]

I am using your demo on Hide Groupby Columns at https://paramquery.com/pro/demos/group_rows_hidden
If every group is not collapsed and I only collapsed the sub-group Speedy Express under Yvonne Moncado under Argentina.
How can I know that this is the only collapsed sub-group?
I pass the information to server where I produce the pdf file so I need to know which sub-group was collapsed.

[paramvir]

Every row has group related meta data associated with it.

When  sub-group Speedy Express is collapsed under Yvonne Moncado under Argentina.

the following properties are added to the row.

pq_close: true ( true when collapsed )
pq_level: 2

And all the group data can be obtained by pageData() method.  https://paramquery.com/pro/api#method-pageData

[TeeJT]

Thank you for the information.