Export skill tree

{
  "slug": "<string>",
  "target": "<string>",
  "root": "<string>",
  "source": "custom",
  "redirected_from": "<string>",
  "files": [
    {
      "path": "<string>",
      "content": "<string>",
      "content_type": "<string>",
      "encoding": "utf8",
      "sha256": "<string>",
      "size_bytes": 123
    }
  ]
}