curl --request POST \
  --url https://api.klavis.ai/sandbox/google_docs/{sandbox_id}/initialize \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "documents": [
    {
      "title": "<string>",
      "content": "<string>"
    }
  ]
}
'

{
  "sandbox_id": "<string>",
  "status": "idle",
  "message": "<string>",
  "records_created": {}
}