docs: function findRecordIds(store, rowData) {
  
        var internalIds = [];
  
        store.each(function (m) {
          for (var i = 0; i < rowData.length; i++) {
            var item = rowData[i];
            var dataIndex = item[0];
            var value = item[1];
            var fieldValue = m.get(dataIndex);
            if (fieldValue !== value) {
              return true; // To next record.
            }
          }
          internalIds.push(m.internalId);
          return true;
        });
  
        if (!internalIds.length) {
          throw new Error('Record not found for ' + JSON.stringify(rowData));
        }
  
        return internalIds;
      }