'reportQuery': {
'dimensions': ['DATE','PROGRAMMATIC_CHANNEL_NAME','CHANNEL_NAME','URL_NAME','CLASSIFIED_ADVERTISER_NAME','MOBILE_INVENTORY_TYPE'],
'columns': ['TOTAL_LINE_ITEM_LEVEL_IMPRESSIONS','TOTAL_LINE_ITEM_LEVEL_ALL_REVENUE','TOTAL_LINE_ITEM_LEVEL_WITHOUT_CPD_AVERAGE_ECPM'],
'dateRangeType': 'CUSTOM_DATE',
'startDate': start_date,
'endDate': end_date
}
}