appwrite/docs/examples/1.8.x/server-python/examples/databases/upsert-documents.md

from appwrite.client import Client
from appwrite.services.databases import Databases

client = Client()
client.set_endpoint('https://<REGION>.cloud.appwrite.io/v1') # Your API Endpoint
client.set_project('<YOUR_PROJECT_ID>') # Your project ID
client.set_key('<YOUR_API_KEY>') # Your secret API key

databases = Databases(client)

result = databases.upsert_documents(
    database_id = '<DATABASE_ID>',
    collection_id = '<COLLECTION_ID>',
    documents = [],
    transaction_id = '<TRANSACTION_ID>' # optional
)