curl --request GET \
  --url https://analytics-api.voiceflow.com/v1/transcript-property/project/{projectID} \
  --header 'authorization: <api-key>'

{
  "properties": [
    {
      "id": "<string>",
      "projectID": "<string>",
      "name": "<string>",
      "type": "<string>",
      "default": true,
      "createdAt": "2023-12-25",
      "updatedAt": "2023-12-25"
    }
  ]
}