Example
json
{
"type": "session.commentary.appended",
"event_id": "evt_commentary_002",
"client_event_id": "evt_commentary_001",
"start_ms": 5200,
"end_ms": 5400
}session.input_transcript.delta
A transcript fragment for user input audio in the Live session. Accumulate fragments in delivery order; these events do not define complete turns or include a transcript-done event.