플러터앱에서 dart_openai 패키지를 사용하는 방법

OPEN_AI_API_KEY=sk-1OU6GxxxxxxxxxxxxxxxxxxxxxxxxxxQNkvJu   

//lib/env/env.dart
import 'package:envied/envied.dart';

part 'env.g.dart';

@Envied(path: ".env")
abstract class Env {
  @EnviedField(varName: 'OPEN_AI_API_KEY')
  static const String apiKey = _Env.apiKey;
}

import 'package:dart_openai/dart_openai.dart';
import 'package:flutter/material.dart';
import 'package:use_dart_openai/env/env.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(        
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});
  final String title;
  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  void _incrementCounter() {
    setState(() {      
      _counter++;
    });
  }
  @override
  Widget build(BuildContext context) {    
    return Scaffold(
      appBar: AppBar(        
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,        
        title: Text(widget.title),
      ),
      body: Center(       
        child: Column(          
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: generateTextTemp,
        // onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }

  Future<void> generateTextTemp() async {
    setState(() {      
      _counter++;
    });

    // Set the OpenAI API key from the .env file.
    OpenAI.apiKey = Env.apiKey;
    OpenAICompletionModel completion = await OpenAI.instance.completion.create(
      model: "text-davinci-003",
      prompt: "Dart is a program",
      maxTokens: 20,
      temperature: 0.5,
      n: 1,
      stop: ["\n"],
      echo: true,
      seed: 42,
      bestOf: 2,
    );
    print(completion.choices.first.text); // ...
    print(completion.systemFingerprint); // ...
    print(completion.id); //
  }
}  

<key>com.apple.security.network.client</key>
<true/>