sdk-for-dart/docs/examples/functions/update-variable.md

import 'package:dart_appwrite/dart_appwrite.dart';

Client client = Client() .setEndpoint('https://.cloud.appwrite.io/v1') // Your API Endpoint .setProject('<YOUR_PROJECT_ID>') // Your project ID .setKey('<YOUR_API_KEY>'); // Your secret API key

Functions functions = Functions(client);

Variable result = await functions.updateVariable( functionId: '<FUNCTION_ID>', variableId: '<VARIABLE_ID>', key: '', value: '', // (optional) secret: false, // (optional) );