import requests

url = "https://api.diga.io/v1/workflow/{flow_id}/branch/duplicate"

payload = {
    "stepName": "<string>",
    "branchIndex": 123
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "id": "<string>",
  "created": "2023-11-07T05:31:56Z",
  "updated": "2023-11-07T05:31:56Z",
  "name": "<string>",
  "trigger": {
    "name": "<string>",
    "type": "<string>",
    "valid": true,
    "displayName": "<string>",
    "settings": {
      "pieceName": "<string>",
      "pieceVersion": "<string>",
      "triggerName": "<string>",
      "input": {},
      "propertySettings": {},
      "sampleData": {}
    },
    "nextAction": {
      "name": "<string>",
      "type": "<string>",
      "valid": true,
      "displayName": "<string>",
      "skip": true,
      "settings": {
        "pieceName": "<string>",
        "pieceVersion": "<string>",
        "actionName": "<string>",
        "triggerName": "<string>",
        "input": {},
        "propertySettings": {},
        "sampleData": {},
        "branches": [
          {}
        ],
        "executionType": "<string>"
      },
      "children": [
        "<unknown>"
      ],
      "nextAction": null
    }
  },
  "produced_variables": [
    "<string>"
  ],
  "consumed_variables": [
    "<string>"
  ]
}