You must either own or have edit access to the snippet or the snippet's parent tag to use this.
Templates not immediately deleted
Note that templates aren't immediately deleted using this API. They are still accessible in the special "Trash" folder in the Mixmax UI, then are automatically deleted after 28 days. They can be retrieved via the API using
GET /snippets?deletedOnly=true. They can be "undeleted" by moving them into a folder (