I got a problem when I want to show Datatable. I'm using python to return data

return jsonify({'data': {'1': list_data, '2':list_data2}})

Then I have datatable :

tableUtama = $('#tableUtama').DataTable({
    'scrollY': '250px',
    'scrollX': true,
    'searching': false,
    'ordering': false,
    'info': false,
    'paging': false,
    'autoWidth': true,
    "ajax": {
      "url": "/processData",
      "dataType": "json",
      "dataSrc": function (data) {
          return data.data['1']
        }
        "columnDefs": [
        { 'targets': 0, "data": "kd_toko" },
        { 'targets': 1, "data": "name_toko"},
        { 'targets': 2, "data": "loc_toko" },
        { 'targets': 3, "data": "type_toko" },
        { 'targets': 4, "data": "dates" }]
         }
         })

All data inside data.data['1'] not showing. but only show row

please help me