const obj = {x: '2', y: '1'}
const thing = {...obj, x: '1'}
// thing = {x: '1', y: 1}

regions = []
for doc in locations_addresses['documents']:
   regions.append(
        {
            ...doc, # this will not work
            'lat': '1234',
            'lng': '1234',

        }
    )
return json.dumps({'regions': regions, 'offices': []})