curl --request POST \
  --url https://api.tilt.io/api/v1/custom/org/{organization_uuid}/clients/{client_uuid}/accounts/{account_uuid}/backtests/ \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "start_date": "2023-12-25",
  "end_date": "2023-12-25",
  "rebalance_period": "MONTHLY",
  "tax_gamma": 50,
  "tax_loss_threshold_bps": 2500,
  "starting_nav": 500000050
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "params": {
    "start_date": "2023-12-25",
    "end_date": "2023-12-25",
    "rebalance_period": "MONTHLY",
    "tax_gamma": 50,
    "tax_loss_threshold_bps": 2500,
    "starting_nav": 500000050
  },
  "result": {},
  "error_message": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "started_at": "2023-11-07T05:31:56Z",
  "finished_at": "2023-11-07T05:31:56Z"
}