/**
 * The widget's dictation hook — now a thin wrapper over the shared engine.
 *
 * ★ WHY A WRAPPER AND NOT A REPLACEMENT. This file's API (`transcript`, `reset`)
 * is what every shell mounting `AssistantWidget` already calls. The shared engine
 * has a different, better contract — it reports finalised phrases through a
 * callback instead of accumulating a string — so swapping it in directly would
 * have broken every one of those consumers at once, for a change that is meant to
 * FIX them.
 *
 * ★ WHAT CONSUMERS SILENTLY GAIN. This file was 122 lines and the engine it now
 * delegates to is 350, because that engine carries fixes this copy never got:
 *
 *  - `onstart` as the real capture signal. `isListening` set after `start()`
 *    returns only means the request was accepted, so the button reported
 *    "listening" while the microphone was still closed.
 *  - `isStarting`, cleared on every terminal path — the permission window used to
 *    leave the control dead with no way to recover but a reload.
 *  - `no-speech` and the other transient recogniser errors treated as recoverable
 *    rather than fatal.
 *
 * Those were fixed in one product weeks ago. Every other product kept the broken
 * button until this wrapper landed.
 *
 * Deprecated in favour of importing the engine directly: the callback contract
 * loses nothing and avoids accumulating a string the caller may not want.
 */
export interface UseVoiceInputReturn {
    isSupported: boolean;
    isListening: boolean;
    transcript: string;
    start: () => void;
    stop: () => void;
    reset: () => void;
}
export declare function useVoiceInput(lang?: string): UseVoiceInputReturn;
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