There is a footer property in datatable which export the footer data

{
                    extend: 'csv',
                    footer: true,
                    exportOptions: {
                        columns: ':visible'
                    }
                },

footer : true, property allows to export footer data to csv file.

How can I set this same property in below code

{
                text: 'JSON',
                action: function ( e, dt, button, config ) {
                    var data = dt.buttons.exportData();
 
                    $.fn.dataTable.fileSave(
                        new Blob( [ JSON.stringify( data ) ] ),
                        'Export.json'
                    );
                }
            }

Is this possible ? Please help me any solution. Thanks in advance.