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controlled_generation.dart
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controlled_generation.dart
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// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import 'dart:io';
import 'package:google_generative_ai/google_generative_ai.dart';
final apiKey = () {
final apiKey = Platform.environment['GEMINI_API_KEY'];
if (apiKey == null) {
stderr.writeln(r'No $GEMINI_API_KEY environment variable');
exit(1);
}
return apiKey;
}();
Future<void> jsonControlledGeneration() async {
// [START json_controlled_generation]
final schema = Schema.array(
description: 'List of recipes',
items: Schema.object(properties: {
'recipeName':
Schema.string(description: 'Name of the recipe.', nullable: false)
}, requiredProperties: [
'recipeName'
]));
final model = GenerativeModel(
model: 'gemini-1.5-pro',
apiKey: apiKey,
generationConfig: GenerationConfig(
responseMimeType: 'application/json', responseSchema: schema));
final prompt = 'List a few popular cookie recipes.';
final response = await model.generateContent([Content.text(prompt)]);
print(response.text);
// [END json_controlled_generation]
}
Future<void> jsonNoSchema() async {
// [START json_no_schema]
final model = GenerativeModel(
model: 'gemini-1.5-pro',
apiKey: apiKey,
generationConfig: GenerationConfig(responseMimeType: 'application/json'));
final prompt = 'List a few popular cookie recipes using this JSON schema:\n\n'
'Recipe = {"recipeName": string}\n'
'Return: Array<Recipe>';
final response = await model.generateContent([Content.text(prompt)]);
print(response.text);
// [END json_no_schema]
}
void main() async {
await jsonControlledGeneration();
await jsonNoSchema();
}