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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def data(self):
 """Return the batch data to be sent to the ThreatConnect API. **Processing Order:** * Process groups in memory up to max batch size. * Process groups in shelf to max batch size. * Process indicators in memory up to max batch size. * Process indicators in shelf up to max batch size. This method will remove the group/indicator from memory and/or shelf. """

        entity_count = 0
        data = {'group': [], 'indicator': []}
        # process group data
        group_data, entity_count = self.data_groups(self.groups, entity_count)
        data['group'].extend(group_data)
        if entity_count >= self._batch_max_chunk:
            return data
        group_data, entity_count = self.data_groups(self.groups_shelf, entity_count)
        data['group'].extend(group_data)
        if entity_count >= self._batch_max_chunk:
            return data

        # process indicator data
        indicator_data, entity_count = self.data_indicators(self.indicators, entity_count)
        data['indicator'].extend(indicator_data)
        if entity_count >= self._batch_max_chunk:
            return data
        indicator_data, entity_count = self.data_indicators(self.indicators_shelf, entity_count)
        data['indicator'].extend(indicator_data)
        if entity_count >= self._batch_max_chunk:
            return data
        return data