/**
 * Configuration for preemptive generation.
 */
export interface PreemptiveGenerationOptions {
    /**
     * Whether preemptive generation is enabled.
     * @defaultValue true
     */
    enabled: boolean;
    /**
     * Whether to also run TTS preemptively before the turn is confirmed.
     * When `false` (default), only LLM runs preemptively; TTS starts once the
     * turn is confirmed and the speech is scheduled.
     * @defaultValue false
     */
    preemptiveTts: boolean;
    /**
     * Maximum user speech duration (ms) for which preemptive generation
     * is attempted. Beyond this threshold, preemptive generation is skipped
     * since long utterances are more likely to change and users may expect
     * slower responses.
     * @defaultValue 10000
     */
    maxSpeechDuration: number;
    /**
     * Maximum number of preemptive generation attempts per user turn.
     * The counter resets when the turn completes.
     * @defaultValue 3
     */
    maxRetries: number;
}
export declare const defaultPreemptiveGenerationOptions: {
    readonly enabled: true;
    readonly preemptiveTts: false;
    readonly maxSpeechDuration: 10000;
    readonly maxRetries: 3;
};
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