GlideAggregate and group_concat in a ServiceNow script

GlideAggregate and group_concat in a ServiceNow script to concatenate the values of a field called "sys_id" from multiple records grouped by the "Category" field ServiceNow

var agg = new GlideAggregate('incident');  // Replace 'tableName' with the actual table name you want to query
 agg.addAggregate('group_concat', 'sys_id');
agg.groupBy('category');
 agg.query();
 while (agg.next()) {
  var category = agg.getValue('category');
  var concatenatedNames = agg.getAggregate('group_concat', 'sys_id');
   gs.info('Category: ' + category + ', Concatenated Names: ' + concatenatedNames);
}