curl --request PUT \
  --url http://localhost:3000/api/models/{modelId}/parts/{partId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "contents": "<string>",
  "fileName": "<string>",
  "fileExtension": "<string>"
}'

{
  "success": true,
  "fileName": "<string>"
}