curl --request POST \
  --url https://api.galileo.ai/v2/datasets/{dataset_id}/preview \
  --header 'Content-Type: application/json' \
  --header 'Galileo-API-Key: <api-key>' \
  --data '
{
  "column_mapping": {
    "input": {
      "columns": [
        "<string>"
      ],
      "flatten": false
    },
    "output": {
      "columns": [
        "<string>"
      ],
      "flatten": false
    },
    "generated_output": {
      "columns": [
        "<string>"
      ],
      "flatten": false
    },
    "metadata": {
      "columns": [
        "<string>"
      ],
      "flatten": false
    },
    "mgt": {}
  }
}
'

{
  "starting_token": 0,
  "limit": 100,
  "paginated": false,
  "next_starting_token": 123,
  "column_names": [
    "<string>"
  ],
  "warning_message": "<string>",
  "rows": [
    {
      "row_id": "<string>",
      "index": 123,
      "values": [
        "<string>"
      ],
      "values_dict": {},
      "metadata": {
        "created_in_version": 123,
        "created_at": "2023-11-07T05:31:56Z",
        "created_by_user": {
          "id": "<string>",
          "email": "<string>",
          "first_name": "<string>",
          "last_name": "<string>"
        },
        "updated_in_version": 123,
        "updated_at": "2023-11-07T05:31:56Z",
        "updated_by_user": {
          "id": "<string>",
          "email": "<string>",
          "first_name": "<string>",
          "last_name": "<string>"
        }
      }
    }
  ]
}