curl --request POST \
  --url https://api.devin.ai/v3beta1/organizations/{org_id}/attachments \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file'

{
  "attachment_id": "<string>",
  "name": "<string>",
  "url": "<string>"
}