TurnItem

occurred_at
Type: string · Occurred At
required

Wall-clock time of the turn start (ISO 8601).
seq
Type: integer · Seq
required

Conversation-level sequence number (0-based, monotonically increasing).
speaker
Type: string · Speaker
required

Diarised speaker role, e.g. caller or recipient.
text
Type: string · Text
required

The turn text.