def get_tags(self, idx):
        return self.note_headers[idx][NotesList.TAGS_COL]
Returns URN describing where exported values are coming from.
dataset/ETHPy150Open cpbotha/nvpy/nvpy/view.py/NotesList.get_tags--crossover with--dataset/ETHPy150Open google/grr/grr/tools/export_plugins/plugin.py/OutputPluginBasedExportPlugin.GetValuesSourceURN