curl --request POST \
  --url https://api.polymarketexchange.com/v1/valuations/accounts:batchGet \
  --header 'Content-Type: application/json' \
  --data '
{
  "names": [
    "<string>"
  ],
  "asOfTime": "2023-11-07T05:31:56Z",
  "asOfDate": {
    "year": 123,
    "month": 6,
    "day": 16
  },
  "markPriceType": "MARK_PRICE_TYPE_LAST"
}
'

{
  "summaries": [
    {
      "account": "<string>",
      "currency": "<string>",
      "totalCost": "<string>",
      "totalMarketValue": "<string>",
      "totalUnrealizedPnl": "<string>",
      "totalRealizedPnl": "<string>",
      "positionCount": 123,
      "valuationTime": "2023-11-07T05:31:56Z"
    }
  ],
  "errors": [
    {
      "account": "<string>",
      "code": 123,
      "message": "<string>"
    }
  ],
  "valuationTime": "2023-11-07T05:31:56Z"
}