def METHOD_NAME(self):
    idx = self.table.selectedIndexes()
    if idx:
        idx = self.table_model_filter.mapToSource(idx[0])
        key = self.table_model.index_to_key(idx)
        if key is not None:
            persist, value, metadata = self.table_model.backing_store[key]
            asyncio.ensure_future(self.dataset_ctl.set(key, value, metadata=metadata))