CourseItem

{
    "id": "FID001",
    "type": "CourseItemAudio",
    "attributes": {
        "title": "string",
        "description": "string",
        "customLabel": "string",
        "type": "audio",
        "isReviewRequired": true,
        "shouldPreview": true,
        "allowDownload": true
    },
    "relationships": {
        "course": {
            "data": {
                "id": "FID001",
                "type": "Course"
            }
        },
        "folder": {
            "data": {
                "id": "FID001",
                "type": "CourseFolder"
            }
        },
        "audio": {
            "data": {
                "id": "FID001",
                "type": "Content"
            }
        }
    }
}