Link Knowledge Content to Assistant

curl --request POST \
  --url https://api.useinvent.com/orgs/{org_id}/assistants/{assistant_id}/knowledge/contents/{content_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "title": "<string>",
  "content": {
    "text": "<string>"
  },
  "size": 123,
  "chunks_processed": 123,
  "chunks_count": 123,
  "error": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "parent_content_id": "<string>",
  "children": [
    {
      "id": "<string>",
      "title": "<string>",
      "content": {
        "text": "<string>"
      },
      "size": 123,
      "chunks_processed": 123,
      "chunks_count": 123,
      "error": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "parent_content_id": "<string>"
    }
  ]
}