curl --request PATCH \
  --url https://api.cartesia.ai/agents/documents/{document_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Cartesia-Version: <cartesia-version>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "content": "<string>",
  "name": "<string>",
  "metadata": {},
  "folder_id": "<string>"
}
'

{
  "id": "<string>",
  "name": "<string>",
  "content": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "metadata": {}
}