export type IuState = "hypothesized" | "committed" | "revoked";
export interface IncrementalUnitId {
    readonly contextId: string;
    readonly iuId: string;
    readonly epoch: number;
}
export interface IncrementalUnit {
    readonly id: IncrementalUnitId;
    readonly kind: "user_turn" | "assistant_response" | "tts_segment";
    state: IuState;
    /** For assistant/tts IUs: the committed character/ms prefix (heard). */
    committedPrefix?: {
        chars?: number;
        ms?: number;
    };
}
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