def METHOD_NAME():
    Disaggregation = apps.get_model('rsr', 'Disaggregation')
    IndicatorPeriodDisaggregation = apps.get_model('rsr', 'IndicatorPeriodDisaggregation')
    return DisaggregationAggregation(Disaggregation.objects, IndicatorPeriodDisaggregation.objects)