import requests
import json

url = "https://api.stack-ai.com/documents/{org_id}/{flow_id}/{node_id}/{user_id}"
headers = {
"Authorization": "Bearer <your-private-key>",
"Content-Type": "application/json"
}

List_of_file_paths = ["/path/to/updated_document1.pdf", "/path/to/updated_document2.pdf"]
files = [("files", open(file_path, "rb")) for file_path in List_of_file_paths]

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