Create attachment preflight message.

curl --request POST \
  --url https://api.revoengine.com/api/v1/assistant/threads/{id}/messages/preflight \
  --header 'Authorization: Bearer <token>'

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.revoengine.com/api/v1/assistant/threads/{id}/messages/preflight', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.revoengine.com/api/v1/assistant/threads/{id}/messages/preflight"

headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, headers=headers)

print(response.text)