[Feat]: gradio_ui.stream_to_gradio without accumulate_delta

[fwwucn]

Is your feature request related to a problem? Please describe.

May I request to customise gradio_ui.stream_to_gradio to output delta with additional_args["accumulate_delta"]?

Describe the solution you'd like

I monkey patched like this:

def stream_to_gradio(
    agent,
    task: str,
    task_images: list | None = None,
    reset_agent_memory: bool = False,
    additional_args: dict | None = None,
):
    """Runs an agent with the given task and streams the messages from the agent as gradio ChatMessages."""

    if not _is_package_available("gradio"):
        raise ModuleNotFoundError(
            "Please install 'gradio' extra to use the GradioUI: `pip install 'smolagents[gradio]'`"
        )

    from smolagents.models import ChatMessageStreamDelta, agglomerate_stream_deltas
    from smolagents.memory import ActionStep, FinalAnswerStep
    from smolagents.agents import PlanningStep

    # Check additional_args["accumulate_delta"]
    accumulate_delta = True
    if additional_args and "accumulate_delta" in additional_args:
        accumulate_delta = additional_args["accumulate_delta"]

    accumulated_events: list[ChatMessageStreamDelta] = []
    for event in agent.run(
        task, images=task_images, stream=True, reset=reset_agent_memory, additional_args=additional_args
    ):
        if isinstance(event, (ActionStep, PlanningStep, FinalAnswerStep)):
            for message in gradio_ui.pull_messages_from_step(
                event,
                # If we're streaming model outputs, no need to display them twice
                skip_model_outputs=getattr(agent, "stream_outputs", False),
            ):
                yield message
            accumulated_events = []
        elif isinstance(event, ChatMessageStreamDelta):
            if accumulate_delta:
                accumulated_events.append(event)
                text = agglomerate_stream_deltas(accumulated_events).render_as_markdown()
            else:
                text = event.content
            yield text

Describe alternatives you've considered

No response

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[holtskinner]

I'm not sure this was filed in the correct repository. If this is for the A2A Python SDK, can you provide context of where this is needed?