curl --request GET \
  --url https://api.service.getjusto.com/v3/tabs/{storeId}/shifts/{shiftId}

{
  "success": true,
  "data": {
    "_id": "<string>",
    "websiteId": "<string>",
    "storeId": "<string>",
    "startedAt": "2020-01-01T00:00:00.000Z",
    "endedAt": "2020-01-01T00:00:00.000Z",
    "createdById": "<string>",
    "closedTabsTotalSales": 2,
    "discountsAmount": 2,
    "avgTicket": 2,
    "eatersCount": 2,
    "totalPayments": 2,
    "cashRegisterShifts": [
      {
        "_id": "<string>",
        "cashRegisterId": "<string>",
        "startedAt": "2020-01-01T00:00:00.000Z",
        "endedAt": "2020-01-01T00:00:00.000Z",
        "startBalances": [
          {
            "paymentMethodId": "<string>",
            "balance": 123
          }
        ],
        "endBalances": [
          {
            "paymentMethodId": "<string>",
            "balance": 123
          }
        ]
      }
    ]
  }
}