async def METHOD_NAME():
    query = {
        "size": 0,
        "query": {
            "range": {
                "metadata.time.insert": {
                    "gt": "now-15m"
                }
            }
        },
        "aggs": {
            "tz": {
                "terms": {
                    "field": "session.tz"
                }
            },
            "country": {
                "terms": {
                    "field": "device.name"
                }
            }
        }
    }
    return await storage_manager('event').query(query)