const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({count: 123, markField: '<string>', markValue: '<string>'})
};

fetch('https://platform.toloka.ai/api/v2-beta/datasets/{datasetId}/sample', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request POST \
  --url https://platform.toloka.ai/api/v2-beta/datasets/{datasetId}/sample \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "count": 123,
  "markField": "<string>",
  "markValue": "<string>"
}
'

import requests

url = "https://platform.toloka.ai/api/v2-beta/datasets/{datasetId}/sample"

payload = {
    "count": 123,
    "markField": "<string>",
    "markValue": "<string>"
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "id": "<string>",
  "target": 4503599627370495
}