curl --request POST \
  --url https://app.octavehq.com/api/v2/brand-voice/apply \
  --header 'Content-Type: application/json' \
  --header 'api_key: <api-key>' \
  --data '
{
  "sources": [
    {
      "type": "TEXT",
      "value": "Lead generation and qualification for enterprise sales"
    }
  ],
  "brandVoiceOId": "<string>",
  "modelType": "ECHO",
  "includeOriginal": false
}
'

{
  "_metadata": {
    "requestId": "requestId",
    "timestamp": "2021-01-01T00:00:00.000Z",
    "usage": 0,
    "message": "message"
  },
  "data": [
    {
      "originalSource": {
        "type": "<string>",
        "value": "<string>"
      },
      "reasoning": "<string>",
      "transformedContent": "<string>",
      "originalContent": "<string>"
    }
  ]
}