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events_to_payload

autogen.beta.a2a.mappers.history.events_to_payload #

events_to_payload(events)

Serialize a sequence of AG2 events into the ag2.history+json shape.

Transient events (ModelMessageChunk, ModelReasoning, lifecycle events) are dropped — they are conversation deltas, not durable state. Unknown event types are also skipped silently so future event additions don't break older clients/servers.

Source code in autogen/beta/a2a/mappers/history.py 
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def events_to_payload(events: Sequence[BaseEvent]) -> dict[str, Any]:
    """Serialize a sequence of AG2 events into the ``ag2.history+json`` shape.

    Transient events (``ModelMessageChunk``, ``ModelReasoning``, lifecycle
    events) are dropped — they are conversation deltas, not durable state.
    Unknown event types are also skipped silently so future event additions
    don't break older clients/servers.
    """
    out: list[dict[str, Any]] = []
    for ev in events:
        encoded = _event_to_dict(ev)
        if encoded is not None:
            out.append(encoded)
    return {"events": out}