curl --request POST \
  --url https://api.example.com/canvas-template-instances/{id}/link \
  --header 'Content-Type: application/json' \
  --data '
{
  "identifier": "<string>",
  "qualifier": "<string>"
}
'

{
  "qualifier": "<string>",
  "links": [
    {
      "relationType": "<string>",
      "title": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "href": "<string>",
      "objectKey": "<string>",
      "lang": [
        "<string>"
      ]
    }
  ],
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "id": "<string>",
  "identifier": "<string>"
}