I appreciate that you recently enabled the extra_body option in the RunConfig based on #487

Would it be possible to have the extra_headers option as well? The analytics provider I use uses the headers to track requests, so without it I'm unable to do monitoring at a per-user level. I can only set the default headers on the client, which will be the same for all requests.

Here an example how to do it in the openai package:

import openai client = openai.OpenAI() response = client.chat.completions.create(model="gpt-4o", messages = [ { "role": "user", "content": "Write a short poem about GitHub" } ], # it is possible to send additional header fields with "extra_headers" extra_headers={ "field1": "value 1" } ) 

Unfortunately I wasn't able to find a way to mimic this behaviour.

I would suggest to add the feature to provide extra header fields in the RunConfig:
result = Runner.run_sync(agent, input="Say this is a test", run_config=RunConfig(extra_headers={"field1":"value 1"}))

Maybe it would also benefit if you can set extra header fields on a per agent basis.
agent = Agent(name="Assistant", instructions="You are a helpful assistant", extra_headers={"field1":"value 1"})
These will then be added on top of the extra fields which have been set in the RunConfig.