Why Agent component has streaming_callback param (passed to ChatGenerator during run) and not generation_kwargs?

[marcoimme]

I notice that haystack.components.agents.Agent component has streaming_callback param that, during run, is passed to chat generator component.

It could be useful having generation_kwargs as param as well since, for some chat generators like AzureOpenAIChatGenerator, is possible to set "stream_options" param that is strictly related to streaming_callback param?

[sjrl]

Hey @marcoimme the Agent component accepts any ChatGenerator at init time. I believe you could pass stream options then right?

Or is there a reason you need to pass them at run time?

Additionally, the streaming callback function is at least not directly related to stream options since streaming callback operates fully within Haystack.