curl --request GET \
  --url https://api.alpha-1edtech.ai/powerpath/course-sequence/:id/stages \
  --header 'Authorization: Bearer <token>'

{
  "stages": [
    {
      "id": "<string>",
      "title": "<string>",
      "grades": [
        "-1"
      ],
      "subject": "Reading",
      "type": "course",
      "properties": {
        "courseReferences": [
          {
            "courseId": "<string>",
            "refAddedAt": "2023-11-07T05:31:56Z"
          }
        ],
        "testTypes": [
          "test_out"
        ],
        "learningAppId": "<string>"
      }
    }
  ]
}