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"""
Show how to use custom outputs.
@dev You need to add OPENAI_API_KEY to your environment variables.
"""
import asyncio
import os
import sys
sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
from dotenv import load_dotenv
load_dotenv()
from pydantic import BaseModel
from browser_use import Agent, ChatOpenAI
class Post(BaseModel):
post_title: str
post_url: str
num_comments: int
hours_since_post: int
class Posts(BaseModel):
posts: list[Post]
async def main():
task = 'Go to hackernews show hn and give me the first 5 posts'
model = ChatOpenAI(model='gpt-4.1-mini')
agent = Agent(task=task, llm=model, output_model_schema=Posts)
history = await agent.run()
result = history.final_result()
if result:
parsed: Posts = Posts.model_validate_json(result)
for post in parsed.posts:
print('\n--------------------------------')
print(f'Title: {post.post_title}')
print(f'URL: {post.post_url}')
print(f'Comments: {post.num_comments}')
print(f'Hours since post: {post.hours_since_post}')
else:
print('No result')
if __name__ == '__main__':
asyncio.run(main())
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