pqGrid("getData") not exporting the the summary rows( using groupModel )

[rsgmedia]

I have applied groupModel on a grid, which has summary rows in between and a grand Summary row at the end of the grid.
I want to export all the grid along with the summary rows in the JSON format using  $( ".selector" ).pqGrid("getData"); but it does not include any summary row.
if  there is any way to get the summary rows. please  reply.

[paramvir]

The method name to export data is "exportData". It includes summary and grand summary rows.

https://paramquery.com/pro/api#method-exportData