curl --request POST \
  --url https://api.kameleoon.com/feature-flags/{siteCode}/{featureKey}/duplicate

{
  "featureKey": "<string>",
  "id": 123,
  "name": "<string>",
  "siteCode": "<string>",
  "archived": true,
  "attributionWindow": 123,
  "bucketingKey": {
    "customDataId": 123
  },
  "createdById": 123,
  "dateContentModified": "2023-11-07T05:31:56Z",
  "dateCreated": "2023-11-07T05:31:56Z",
  "dateModified": "2023-11-07T05:31:56Z",
  "description": "<string>",
  "environmentConfigurations": [
    {
      "dateModified": "2023-11-07T05:31:56Z",
      "defaultVariationKey": "<string>",
      "environmentKey": "<string>",
      "featureEnabled": true,
      "integrations": {
        "deliveryRules": "<array>",
        "experimentRules": "<array>"
      },
      "rolloutRules": [
        {
          "experimentId": 123,
          "id": 123,
          "name": "<string>",
          "release": {
            "releaseFrom": "2023-11-07T05:31:56Z",
            "releaseTo": "2023-11-07T05:31:56Z",
            "timeZone": "Europe/Paris"
          },
          "rollbackConditions": [
            {
              "goalId": 123,
              "id": 123,
              "matchValue": 50,
              "recipients": [
                "<string>"
              ],
              "visitors": 1000
            }
          ],
          "segmentId": 123,
          "trafficAllocations": [
            {
              "exposition": 123,
              "variationId": 123,
              "variationKey": "<string>"
            }
          ],
          "controlVariationKey": "<string>",
          "exposition": 50,
          "multiArmedBandit": true
        }
      ]
    }
  ],
  "primaryGoalId": 123,
  "secondaryGoalIds": [
    123
  ],
  "tags": [
    "<string>"
  ],
  "teamId": 123,
  "variables": [
    {
      "key": "<string>",
      "value": "<string>",
      "allowedValues": [
        "<string>"
      ]
    }
  ],
  "variations": [
    {
      "key": "<string>",
      "name": "<string>",
      "variables": [
        {
          "key": "<string>",
          "value": "<string>"
        }
      ]
    }
  ]
}